Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
SECTION 131100
SWIMMING POOLS
PART 1 GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
The BIDDING REQUIREMENTS, CONTRACT FORMS, AND CONDITIONS OF THE
CONTRACT and applicable parts of DIVISION 1 - GENERAL REQUIREMENTS, as listed in
the Table of Contents, shall be included in and made a part of this Section.
SUMMARY OF WORK (for general guidance-not all inclusive)
A.
Introduction
1. Provide all labor, materials, equipment and services necessary to construct the following: (1) a
competition pool, (2) a dive pool, and (3) a spa. This work shall include the structure(s) and
installation of pool finishes as well as all products listed in Part 2 of Section 131100.
B.
Work included in this section
1. It is the intent of this section to place the entire responsibility for the construction of the
pool(s) (including the construction of the pool shell(s)) under one vested CONTRACTOR.
Under this section the Swimming Pool Contractor will provide but is not necessarily limited to
the following:
a. Provide all equipment and services required for erection and delivery onto the premises of
any equipment or apparatus provided. Remove equipment from premises when no longer
required.
b. Layout, excavate, remove from the construction site, replace and grade materials as
required beyond the limits of excavation of the pool shell(s) to complete the work described
in this section. Reference Division 31 - Earthwork.
c. Grade and replace load bearing or high plasticity index soil, pump and dewater as
necessary to keep excavations free from water during construction, and provide subsurface drainage beneath the surge tank(s) as needed or required in the project
geotechnical report. Reference Division 31 - Earthwork.
d. Provide and maintain proper shoring and bracing for existing utilities, sewers and
building foundations where required for related excavations. Reference Division 31 Earthwork.
e. Provide all electrical conduit, wiring, junction boxes etc. to all low voltage pool equipment
within pool filter/chemical rooms per Division 26 - Electrical. (Low voltage is considered
less than 110 V.)
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
f. Coordinate for all required bonding and grounding of the pool shell, fittings, and
equipment.
g. Provide all necessary piping and valving as shown on the drawings and specified herein.
h. Provide individually sized housekeeping pads for each pool pump.
i. Provide the main drain hydrostatic relief system and a sight sump as shown on the
drawings. Reference Division 31 - Earthwork.
j. Construct the cast in place concrete or shotcrete pool shell(s) and cast in place surge tank(s)
as described in these specifications and detailed on the drawings, including reinforcement
steel, inserts, fittings, main drain sumps and all embedded items (piping, anchors, spargers,
etc.) for the pool(s) and spa. Reference Division 3 - Concrete and Structural. Before
commencing the placement of concrete, verify electrical bonding of the pool and spa
embedded items and reinforcing steel. Also, coordinate and arrange any required electrical,
plumbing and or building inspections. Provide any structure drainage around the pool as
shown on the drawings. Backfill and compact fill around the pool structure, piping
trenches and excavations required by this work. Reference Division 31 - Earthwork.
k. Provide a ceramic tile finish in the pools and spa with a slip resistant surface. Provide
specialty tile for the perimeter tile deck band, end wall parapet, gutter nosing, wall targets,
recessed steps, floor lane markings, depth markings and warning signs, water polo
markings, stanchion and water polo identification, construction joint installation bands and
all other tile installation within the pool structures. Reference Section 093213 - Swimming
Pool Tile - including the tolerance requirements for the concrete substrate.
l. Assemble and install the cleaning and maintenance equipment for the pool(s) as specified
herein.
m. Provide for the storage of all pool related equipment, materials and systems. All items are
the responsibility of the CONTRACTOR until accepted by owner.
n. Obtain final acceptance by jurisdictional health department(s).
o. Start, test, calibrate and adjust all mechanical equipment, electrical equipment,
recirculation, chemical, and other supplied systems including deck, loose, maintenance, and
safety equipment. Instruct the Owner's representative in the systems operation and
maintenance as described herein.
1.3
Related work specified in other sections
A.
Section 093213 – Swimming Pool Tile
B.
Section 116643 – Swimming Pool Timing System
C.
The following work related to the swimming pools shall be completed by other trades.
1. Provide, erect and maintain all necessary barricades, signs, lights and flares for pool
construction to protect workers and the public.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
2. Provide and maintain proper shoring and bracing for existing utilities, sewers and building
foundations where required for swimming pool related excavations. Reference Division 31 Earthwork.
3. Provide the under drain system beneath the pool(s).
4. Provide sub-surface drainage beneath the pump pit and backwash pit. Reference Division 31
- Earthwork.
5. Provide housekeeping pad for filter, heater, heater rack, and any other floor mounted piece
of pool equipment.
6. Construct pump pit and backwash pit including reinforcement, inserts, wall sleeves, anchors,
access hatches, and fittings. Reference Division 3 - Concrete.
7. Prior to concrete pours, verify electrical bonding of the pool embedded items. Coordinate and
arrange any required electrical, plumbing and or building inspections to be performed on
embedded items. Reference Division 26 - Electrical.
8. Provide sanitary sewer and storm drain connections. Reference Division 22 - Plumbing.
9. Provide deck finish beyond perimeter tile band.
Improvements.
Reference Division 32 - Exterior
10. Provide rules and regulations signage as required by code. Reference Division 1 - General
Requirements.
11. Provide chlorine resistant caulking (sealant) and backer rod on pool decks. Reference Division
7 - Thermal and Moisture Protection.
D.
Related work specified in Plumbing section. Reference Division 22 - Plumbing. Work to be
completed by other contractors.
1. Provide trench drains and area drains on pool deck.
2. Provide sanitary sewer piping from the filter room including floor drains, sumps, and sump
pump.
3. Provide water service to all hose bibbs, flush hydrant boxes and auto-fill bypass to air gap
above fill funnel(s). Install the slow closing solenoid valve(s) in the bypass auto-fill piping.
4. Install Plumbing Contractor supplied water meter on the fresh water supply line upstream of
the manual fill valve and the slow closing solenoid valve.
E.
Related work specified in Mechanical section. Reference Division 23 – HVAC. Work to be
completed by other contractors.
1. Provide the heating system for the pool(s). Work to include all piping from the installed pool
heating loop tees, heaters, booster pumps, controls, gauges, thermostats, control valves and
wiring required to draw water from the recirculation line, heat the water and return it back to
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
the recirculation line and interlock with pool recirculation pumps. Provide any related systems
for supplemental pool water heating.
2. Provide air recirculation systems for pool related spaces.
F.
Related work specified in Electrical sections. Reference Division 26 – Electrical. Work to be
completed by other contractors.
1. Provide power to the exhaust fans for the chemical rooms.
2. Provide motor starters, auxiliary contacts, magnetic relays and other electrical control devices
necessary for the complete operation of the pool systems. Install power to Variable Frequency
Drive pool pump starters and power from VFD to the pool pump motor.
3. Ground and bond all pool structures, fittings and equipment in accordance with Article 680 of
the N.E.C. Test and verify that the system electrical ground is true and solid. Provide
certification to this effort.
4. Obtain permits, inspections, and approvals of all wiring including grounding and bonding of
all metal components associated with the pool in accordance with Local, State and National
Electrical Codes.
5. Install power, conduits, electrical boxes, and wiring for the Owner furnished electronic timing
and scoreboard system with multi-sport capability for race swimming, diving, water polo, and
pace clock.
6. Confirm all electrical conduits that penetrate the pool shell are watertight and installed per
N.E.C. Article 680.
1.4
QUALITY ASSURANCE
A.
The specifications and drawings illustrate and detail three (3) swimming pool systems that shall
be utilized for both competitive and recreational use. Certain technical aspects of the design are
common only to pool systems planned for public use. Understanding these aspects, their
functions and interaction through experience is vital to completing a successful operating system.
It is a mandatory requirement that all bidders will have achieved such experience as a prerequisite
for bidding this project.
1. The POOL CONTRACTOR must include a performance bond from an approved surety
company registered in the State of Arizona certifying that the POOL CONTRACTOR will
provide 100% Performance, Labor, and Materials on this Project.
The POOL
CONTRACTOR must submit a copy of the performance bond for review prior to POOL
CONTRACTOR’s selection.
2. If the Contractor has not received prior written approval or has not been included in the preapproved list of Contractors, they must submit prior to the start of construction a list of their
relevant experience. The Contractor must have completed at least five (5) public-use
competition pools with individual water surface areas in excess of 12,600 square feet and a
depth of 14’-0” or more within the past 10 years. A list of projects meeting the
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
aforementioned qualifications, including contact information of the General Contractor shall
be submitted for review and approval at least 10 days prior to bidding of the project.
3. The Contractor must submit prior to the start of construction the name of the on-site Project
Superintendent including their relevant experience. The Contractor’s on-site Project
Superintendent must have completed at least five (5) public-use competition pools with
individual water surface areas in excess of 12,600 square feet and a depth of 14’-0” or more
within the past 10 years. A list of projects meeting the aforementioned qualifications,
including contact information of the General Contractor as well as Owner shall be included
with the experience submittal. Project Superintendent must not change on the project unless
written authorization has been provided by the Architect and Owner.
4. The Owner reserves the right to reject any bid if the evidence submitted by, or investigation of,
such bidder fails to satisfy the Owner that such bidder is properly qualified to carry out the
obligation of the contract and to complete the work described or if the bidder does not have the
qualifications stated herein. Subject to compliance with item 2 above on this specification.
5. The following bidders have been pre-approved. All bidders shall meet the requirements listed
above.
1.5
Acapulco Pools
Bernie Gall
1550 Victoria St. N.
Kitchener, Ontario N2B3EZ
Phone: 519 - 743-6357
Fax: 519-743-9698
The Pool Company, Inc.
Matt Ruzicka
3077 20th St E Suite D
Tacoma, WA 98424
Phone: 253-926-6875
Fax: 253-926-0590
Mission Pools
755 West Grand
Escondido, CA 92025
Phone: 619-743-2605
Fax: 619-743-0384
Shasta Industries
Curt Lonsdale
7220 N. 16th St., #C-200
Phoenix, AZ 85020
Phone: 602-997-7896
Fax: 602-943-8692
REGULATORY AGENCY REQUIREMENTS AND ENGINEERING SERVICES
A.
The entire system shall be designed and installed to meet applicable national and local codes and
be in compliance with applicable sections of the American National Standards Institute / National
Spa and Pool Institute (ANSI /NSPI-1 2003) and the rules and regulations of National Collegiate
Athletic Association (NCAA).
B.
The system shall comply with all necessary approvals obtained by the Architect from local
regulatory agencies governing the design and construction of public swimming pools.
C.
The Contractor shall give all necessary notices, obtain all permits and pay all government fees,
and other costs in connection with his work; file all necessary drawings, prepare all documents
and obtain all necessary approvals of governmental departments having jurisdiction; obtain all
required certificates of inspection for his work and deliver same to the Architect before request for
acceptance and final payment for the work.
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Flagstaff, AZ
D.
1.6
Center For Aquatics & Tennis
Design Development - September 13, 2013
The Contractor shall include in the work, without extra cost to the Owner, any labor, materials,
services, apparatus or drawings in order to comply with all applicable laws, ordinances, rules and
regulations, whether or not shown on drawings and/or specified.
COORDINATION AND CLARIFICATION
A.
Coordinate with other contractors or subcontractors all work relating to this section.
B.
The Contractor must establish with other contractors or subcontractors, having related work in this
section, that all work necessary to complete the pool(s) as shown on the drawings and in the
specifications is included in the base bid and alternates to the Owner.
C.
If in doubt regarding the responsibility for work covered in this section and/or discovery of errors
or omissions in the bidding documents, the Contractor shall notify the Architect through channels
established by the specifications and request a clarification ten (10) days prior to the bid date.
1.7
ALTERNATES
A.
1.8
Review the description of the alternates in Division 1 and on the drawings for possible effect upon
work in this section. Alternates related to the work in this section are described in this division
and on the bid proposal form.
CONTRACTOR’S ALTERNATE PROPOSAL
A.
Contractor shall submit his bid to the owner based on materials, equipment and methods as
specified in this Section. No substitutions of material will be allowed.
B.
It is the intent of the contract documents to encourage competition. The base proposal must be on
providing the construction methods and equipment as specified and detailed. Any proposed
system substitution must have prior written approval by the Architect.
C.
If there is any deviation from the basis of design equipment it is the responsibility of the
contractor to confirm that all engineering criteria are appropriate for the substituted equipment.
D.
All proposed substitutions of specified construction methods and equipment shall include a
complete submittal as required by these specifications and drawings of appropriate scale
incorporating all required changes. The Contractor shall provide a list of at least ten (10)
satisfactory installations comparable to this project that have been manufactured and installed
under the manufacturer's current legal name. Submit a list of such projects with the name, address
and current telephone number of the Owner's Operator and Architect of Record to the Architect
on the bid date.
E.
Any changes or modifications to the Contract Documents that are not authorized by the architect
shall be the sole responsibility of the Contractor.
1.9
SUBMITTALS
A.
All submittals shall be made in accordance with the requirements of Division 1 - General
Requirements and in strict compliance with the following procedures and guidelines.
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Flagstaff, AZ
B.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Six (6) sets of shop drawings and engineering data shall be tabbed, indexed, referenced to the
specifications, bound in 3 ring binders and submitted in two stages. Provide 8 ½” x 11” cover
sheet for each item submitted identifying item and product number. The first stage shall include
all embedded items for the pool shell(s) (including piping diagrams) and the second stage shall be
for all remaining items. Electronic submittals will be acceptable in lieu of the six (6) hard copies.
All electronic submittals shall be organized, numbered, and submitted in the same format as the
project specifications. Only complete sets will be reviewed.
1. Engineering data covering all systems, equipment, structures and fabricated materials, which
will become a permanent part of the work under this contract, shall be submitted for review.
This data shall include drawings and descriptive information in sufficient detail and scale to
show the kind, size, arrangement, and operation of component materials and devices; the
external connections, anchorage and supports required; performance characteristics;
fabrication and dimensions needed for installation and correlation with other materials and
equipment. A certification, in writing, shall be provided indicating that all equipment will fit
in the space allotted and as shown on the drawings.
2. All submittals regardless of origin shall be stamped with the approval of the CONTRACTOR
and identified with the name and number of this contract, CONTRACTOR’S name, and
references to applicable specification paragraphs and contract drawings. Each submittal shall
indicate the intended use of the item in the work. When catalog pages are submitted,
applicable items shall be clearly identified. The current revision, issue number, and date shall
be indicated on all drawings and other descriptive data.
3. The submittals will not be accepted from anyone but the CONTRACTOR. Submittals shall be
consecutively numbered in direct sequence of submittal and without division by subcontracts
or trades.
4. The CONTRACTOR’S stamp of approval is a representation that the CONTRACTOR accepts
full responsibility for determining and verifying all quantities, dimensions, field construction
criteria, materials, catalog numbers and similar data, and that he has reviewed or coordinated
each submittal with the requirements of the work and the contract documents.
5. Each submittal shall include a statement prepared by the originator of the drawings and data,
certifying compliance with the contract documents except for deviations, which are
specifically identified.
6. All deviations from the contract documents shall be identified on each submittal and shall be
tabulated in the CONTRACTOR’S letter of transmittal. Such submittals shall, as pertinent to
the deviation, indicate essential details of all changes proposed by the CONTRACTOR
(including modifications to other facilities that may be a result of the deviation) and all
required piping and wiring diagrams.
7. The CONTRACTOR shall accept full responsibility for the completeness of each submission,
and, in the case of a resubmission, shall verify that all exceptions previously noted have been
taken into account. In the event that more than one resubmission is required because of failure
of CONTRACTOR to respond to exceptions and rejections previously noted, CONTRACTOR
shall make all further resubmissions in person at the consultant’s office.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
8. Any need for more than one resubmission, or any other delay in obtaining review of
submittals, will not entitle the CONTRACTOR to an extension of the contract time unless
delay of the work is directly caused by a change in the work authorized by a change order.
9. Review of drawings and data submitted by CONTRACTOR will cover only general
conformity to the drawings and specifications, external connections and dimensions that affect
the layout. Review does not indicate a thorough review of all dimensions, quantities, and
details of the material, equipment, device or item shown. Review of submittals shall not
relieve CONTRACTOR from responsibility for errors, omissions, or deviations, or
responsibility for compliance with the contract documents.
10. When the drawings and data are returned marked REJECTED, REVISE AND RESUBMIT or
SUBMIT SPECIFIED ITEM, the corrections shall be made as noted thereon and as instructed
and six corrected copies (or one copy and one corrected reproducible copy) resubmitted.
11. Resubmittals shall bear the number of the first submittal followed by a letter (A, B, etc.) to
indicate the sequence of the resubmittal. All resubmittals shall be indexed, tabbed, referenced
to the specifications and bound in a three-ring binder and submitted at one time.
12. When corrected copies are resubmitted, the CONTRACTOR shall, in writing, direct specific
attention to all revisions and shall list separately any revisions made other than those called for
on previous submissions.
13. When the drawings and data are returned marked NO EXCEPTIONS TAKEN or MAKE
CORRECTIONS NOTED, no additional copies need to be furnished unless specifically
requested to do so for record.
C.
Permits, Receipts and Test Reports
1. Provide the Architect with copies of all permits and receipts for fee payments.
2. Submit a sample format for each test report intended for use. Submit test reports required
herein only on approved forms.
D.
Include complete product data indexed, tabbed, and referenced to specifications with 8 ½” x 11”
cover sheet covering:
1. Paragraph 2.01 - Overflow System
2. Paragraph 2.02 - Pumping Equipment
3. Paragraph 2.03 - Filtration Equipment
4. Paragraph 2.04 - Recirculation Fittings
5. Paragraph 2.05 - Piping Systems
6. Paragraph 2.06 - Chemical Treatment Systems
7. Paragraph 2.07 - Chemistry Monitoring and Control Systems
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
8. Paragraph 2.08 - Flow Meters
9. Paragraph 2.09 - Water Level Controllers
10. Paragraph 2.10 - Inserts and Anchor Sockets
11. Paragraph 2.11 - Deck Equipment
12. Paragraph 2.12 - Loose Equipment
13. Paragraph 2.13 - Maintenance Equipment
14. Paragraph 2.14 - Safety Equipment
15. Paragraph 2.15 - Thermometers
16. Paragraph 2.16 - Swimming Pool Finishes
17. Paragraph 2.17 - Waterproofing
18. Paragraph 2.18 - Sealants
19. Paragraph 2.19 - Movable Bulkhead
20. Paragraph 2.20 - Pool Compressed Air Bubbling System – Sparger
21. Paragraph 2.21 - Pool Cover
E.
Include engineering/construction drawings for the pool structure.
1. Reference Division 3 - Concrete.
F.
Include engineering construction drawings for all pool piping.
G.
Reference Section 093213 – Swimming Pool Tile
H.
Reference Section 116643 – Swimming Pool Timing System
1.10
OPERATION AND MAINTENANCE MANUALS AND CLOSE-OUT SUBMITTALS
A.
Detailed operation and maintenance information shall be supplied for all equipment requiring
maintenance or other attention. The equipment supplier and/or CONTRACTOR shall prepare an
operation and maintenance manual for all equipment. Parts lists and operating and maintenance
instructions shall be provided.
B.
Each operation and maintenance manual shall include the following:
1. Equipment function and calibration, normal operating characteristics, and limiting conditions.
2. Assembly, installation, alignment, adjustment and checking instructions.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
3. Operating instructions for start up, routine and normal operation, regulation and control, shut
down and emergency conditions.
4. One (1) copy of all instructional videos.
5. Operating cycles shall be specifically described in outline format and in referenced detail. A
wall-mounted color-coded piping flow diagram shall be provided in the pool equipment room.
The diagram shall be engraved on laminated plastic with color-coded piping to match color of
coding on piping, and including valves identified with number on tags. The minimum size
shall be 11 inch x 17 inch.
6. Include manufacturer recommended maintenance schedule, parts lists, piping diagram (to
agree with wall mounted diagram) and trouble-shooting information for all pool mechanical
equipment.
7. Using reference to keyed valves and wall diagram, include specific written instructions for
procedures to be followed for the following:
a. Emptying and refilling the pool(s) including de-watering during the period that the pool(s)
will be empty;
b. Water level control adjustment and chemical control operation;
c. Normal surge tank operation and balancing;
d. Filter operation and backwashing; and
e. Super chlorination.
8. Lubrication and maintenance instructions.
9. Guide to “trouble-shooting”.
10. Parts list and predicted life of parts subject to wear.
11. Outline, cross section, and assembly drawings; engineering data and wiring diagrams.
12. Test data and performance curves, where applicable.
13. Specific written instructions for procedure for emptying and refilling the pool(s) including dewatering during any period that the pool will be empty. Include furnishing and installing a
yellow warning sign 8-1/2 in. x 11 in., to be mounted in the filter room, that reads:
WARNING
Prior to emptying Pool
Consult O & M Manuals for Procedures
Add another sign shall read:
Keep all Caps, Plugs and Tops Tight Fitting to Prevent Escape of Fumes.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
14. One set of applicable submittals shall be included in each manual.
C.
The operation and maintenance manuals shall be in addition to any instructions or parts lists
packed with or attached to the equipment when delivered, or which may be required by the
CONTRACTOR.
D.
Manuals and other data shall be printed on heavy, first quality paper, 8-1/2 x 11 inch size with
standard 3-hole punching and inserted in plastic covers. Drawings and diagrams shall be reduced
to 8-1/2 x 11 inches or 11 x 17 inches. Where reduction is not practical, larger drawings shall be
folded separately and placed in envelopes that are bound into the manuals. Each envelope shall
bear suitable identification on the outside.
E.
Six (6) bound volumes of each manual shall be submitted. All parts lists and information shall be
assembled in substantial manuals and permanent, three-ring or three-post binders. Material shall
be assembled and bound in the same order as specified, and each volume shall have a table of
contents and suitable index tabs.
F.
All material shall be marked with project identification. Non-applicable information shall be
marked out or deleted.
G.
Shipment of equipment will not be considered complete until all required manuals and data have
been received.
1.11
PRODUCT DELIVERY, STORAGE, AND HANDLING
A.
Deliver material in manufacturer's original, unopened containers and crates with all labels intact
and legible.
B.
Deliver materials in sufficient time and quantity to allow continuity of work and compliance with
approved construction schedule.
C.
Handle materials in a manner to prevent damage.
D.
Store all materials on clean raised platforms with weather protective coverings.
continuous protection of materials against damage or deterioration.
E.
Remove damaged materials from site.
1.12
Provide
WARRANTIES
A.
The CONTRACTOR warrants to the Owner and Architect that materials and equipment provided
under the contract will be of good quality and new unless otherwise required or permitted by the
contract documents, that the work will be free from defects not inherent in the quality required or
permitted, and that the work will conform with the requirements of the contract documents. Work
not conforming to these requirements, including substitutions not properly approved and
authorized will be considered defective. The CONTRACTOR'S warranty will exclude remedies
for damage or defect caused by abuse, improper or insufficient maintenance, improper operations,
modifications not executed by the CONTRACTOR or improper wear and tear under normal use.
If required by the Architect, the CONTRACTOR shall furnish satisfactory evidence as to the kind
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
and quality of materials and equipment. All warranties shall be for a period of one year from the
date of substantial completion or the owner begins using the pool unless otherwise specified.
B.
The CONTRACTOR shall agree to repair or replace any defective or non-complying work at no
cost to the Owner upon written notification from the Owner within the warranty period. Pro-rated
warranties are not acceptable.
C.
Submit all warranties covering, but not limited to the following:
1. All pool deck equipment and accessories against defects in material, manufacturer and
installation for a period of one (1) year.
2. Defects in material, manufacture or installation of the recirculating overflow system and
interior coating of the trench for a period of one (1) year.
3. Defects in material, manufacture and installation of the filtration, backwash, chlorination, pH
adjustments and cleaning systems, including controls for a period of one (1) year.
4. Defects in material or workmanship of the pool structure causing a loss of water for a period of
three (3) years.
5. Defects in material, workmanship, and installation of the pool piping system for a period of
three (3) years.
6. Defects in material, workmanship, and installation of the pool pumps for a period of one (1)
year.
7. Manufacturer's minimum five (5) year warranty against defective materials, components and
workmanship in the pool chemical controller. ORP, pH, flow and temperature sensors shall be
covered by a standard two (2) year warranty. All other sensors and flow cell components shall
be covered by a standard one (1) year warranty.
8. Manufacturer's minimum eighteen (18) month warranty against defective materials,
components and workmanship in the Variable Frequency Drive system effective the date of
supply
9. Defects in material, workmanship, and installation of the tile finish against cracking and
delamination for a period of five (5) years.
10. Manufacturer's minimum fifteen (15) year warranty on the filter tank and lining against
defective materials or workmanship of the tank and components. (Additional warranty time
may be purchased from the manufacturer.) Prorated warranties are not acceptable. Flexsol
3000 lined vessels shall carry a fifteen (15) year limited non-prorated warranty. The filter
manufacturer shall bear the responsibility for suitability of lining and shall be the sole
source for the specified warranty. Internal tube elements shall carry a fully rated 10 year
warranty. Valve bodies and the RMF controller shall carry a 5 year fully rated warranty.
Valve operators and system accessories including the bump tire, quick exhaust valve and
solenoid valve shall carry one year warranty as provided by the product manufacturer. Unless
otherwise specified, workmanship is to be guaranteed first class and carry a one (1) year
warranty.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
11. Manufacturer's minimum one (1) year warranty against defective materials, components and
workmanship in the sanitizing feed system.
12. Manufacturer's minimum one (1) year warranty against defective materials, components and
workmanship in the pH buffer feed system.
13. Manufacturer's minimum three (3) year warranty against defective materials, components and
workmanship in the movable bulkhead. The entire bulkhead shall be guaranteed against
delamination or structural defect for a period of twenty-five (25) years.
14. Manufacturer's minimum three (3) year warranty against defective materials, components and
workmanship in the pool compressed air bubbling system - sparger.
15. Manufacturer's minimum fifteen (15) year systems warranty against defective materials,
components and workmanship in the pool tile setting materials.
16. Manufacturer's minimum five (5) year warranty against defective materials, components and
workmanship in the pool cover system and reels.
17. Manufacturer's minimum one (1) year warranty against defective materials, components and
workmanship in the ultraviolet sanitizing system (excluding the UV arc tube). UV arc tubes
are warranted to operate for 4000 hours when operated continuously. A continuously operated
UV arc tube that fails prior to 4000 hours of operation shall be replaced free of charge.
Intermittently operated UV arc tubes (>1 on/off cycle per day) will be replaced free of charge
if failure occur prior to 2000 hours and prorated between 2000 and 4000 hours.
1.13
SYSTEM TRAINING
A.
A qualified representative of the CONTRACTOR performing work under this section shall put
the equipment into operation and instruct the Owner's representatives in the operation of this
equipment to the Owner's satisfaction immediately after project’s substantial completion.
B.
The representative from the CONTRACTOR shall be either a CPO (Certified Pool Operator) or
have an AFO (Aquatic Facility Operator) certification.
C.
Training periods shall consist of 32 hours of on-site training and scheduled as follows:
1. 16 hours of initial training on the complete swimming pool system. The 16 hours of initial
training is to be comprised of at least 4 hours of training on water chemistry analysis and
adjustment. The water chemistry training will include in depth review of the use of the
Langelier index and its computation.
2. The initial 16 hours of training shall include information on the care, operation, adjustment,
and maintenance of all items provided by the CONTRACTOR under the “Part 2 – Products”
section of this specification.
3. 16 hours of training after the Owner's staff has had experience operating the system. This time
may be requested any time after the pool has been placed in operation within a period of one
(1) year from the time the pool was accepted by the Owner. The additional training shall
contain at least 2 hours of review of water chemistry.
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Center For Aquatics & Tennis
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4. The CONTRACTOR shall provide a project specific video recording instruction manual in
addition to the training sessions. The video instructions shall be project specific and shall
include information on the care, operation, adjustment, and maintenance of all items provided
by the CONTRACTOR under the “Part 2 – Products” section of this specification. This video
recording shall be done separate from the Owner training.
5. The CONTRACTOR shall include one (1) copy of all video recording instructions in each
Operations and Maintenance Manual.
1.14
POOL FILL WATER QUALITY
A.
The Owner shall bear the cost of the water required for two (2) complete fillings of the pool (the
initial water tightness test and the final filling). Removal of iron or copper (if in excess of .3 ppm)
will be required for the final fill to avoid staining of the pool finish. Any subsequent fillings or
partial fillings (more than 25%) of the pool shall be by the CONTRACTOR, at its own expense.
B.
The CONTRACTOR shall provide the necessary plant equipment so that the temperature of fill
water will be within plus or minus 10 degrees of the ambient air and/or the pool structure at the
time of filling. Extreme caution is urged if the temperature variance is greater than 10 degree F.
C.
The CONTRACTOR shall provide the necessary chemicals and to adjust and balance the water
chemistry in the pools to the following levels:
pH
7.4 - 7.6
Calcium Hardness
200 - 400 PPM
Total Alkalinity (Calcium Hypochlorite)
60 - 80 PPM
Langelier saturation index
-0.3 - +0.3
Total Dissolved Solids (TDS)
not to exceed 1,500 PPM
1.15
START-UP CHEMICALS
A.
The CONTRACTOR shall maintain the chemical balance of the pool water (including the cost of
all chemicals required) until the pool and mechanical system(s) are fully operational and accepted
by the Architect and the Owner.
B.
Provide the Owner with sufficient quantities of the necessary chemicals to maintain the pool
operation for a minimum of thirty (30) days from substantial completion or the owner begins
using the pool.
C.
Chemicals to be provided to the Owner shall include those required by the chemical feed systems
installed.
1.16
RECORD DRAWINGS
A.
Provide a complete set of record drawings of the entire pool system(s) including all sub-systems.
All record drawings shall be prepared in accordance with the requirements of Section 017839 and
shall be a complete, stand-alone set. The CONTRACTOR shall be permitted to obtain original
documents and copy them for this purpose only. Provide the record set on compact disk
(AutoCAD Release 2004 or compatible software).
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Flagstaff, AZ
Center For Aquatics & Tennis
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PART 2 PRODUCTS
2.1
OVERFLOW SYSTEM
A.
It is the intent of the specifications that the perimeter overflow system and surface cleaning be
maintained under all conditions of normal operation and that no water be discharged to waste
except when cleaning the filters or emptying the pool.
B.
Concrete Perimeter Overflow System – Competition Pool and Dive Pool
1. A perimeter overflow system consisting of a continuous concrete and tile overflow channel as
detailed and shown on the drawings shall be installed on the pool(s). The bottom of the trough
shall be level throughout.
2. The walls, floor, and under side of the parapet shall be coated with epoxy paint. Refer to
section 2.16. Areas not meeting the manufacturer's recommended thickness will be recoated
without additional cost to the Owner.
3. The grating shall be formed of molded PVC sections. Modular, interlocking pieces of UV
stabilized PVC grating. The top surface shall have a raised, diamond ridge design to create
good friction, wet or dry and be 11/16” wide with an outside depth of 1.0” and a middle depth
of 1-3/8” for extra strength. The space between pieces shall not exceed 3/8”. Each piece of
grate shall have a slotted hole at the ends for insertion of a stainless steel fastener clip and
anchor screws every 5 feet and shall be easily removable. Grating surface bars shall run
parallel to the pool wall and with the gap, provide at least 35% open space per foot for
unrestricted water flow. The color of the grate shall be selected by the Architect. The width of
the grating shall allow the insertion of the touchpad holding brackets between the grating and
the gutter lip.
a. Basis of Design: Grating shall be manufactured by Lawson Aquatics supplied by NeptuneBenson, or approved equal.
4. All materials, anchors and fasteners shall be 316L stainless steel.
C.
Skimmer Overflow System - Spa
1. Provide skimming system consisting of units as shown on the drawings. Skimmers shall be
located to ensure maximum skimming action.
a. Basis of Design: Spa skimmers shall be Admiral SC-20 by Pentair Products, or approved
equal.
2. The piping and other pertinent components of skimming equipment shall be designed for a
total capacity of the required filter flow of the recirculation system, and no skimmer shall be
designed for a flow-through rate of less than 30 gallons per minute or 5 gallons per minute
per lineal inch of weir.
3. The skimmer weirs shall be automatically adjustable and shall operate freely with
continuous action to variations in water level over a range of at least 4 inches. The weirs
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Center For Aquatics & Tennis
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shall operate at all flow variations. The weir shall be of such buoyancy and design so as to
develop an effective velocity.
4. An easily removable and cleanable basket or screen through which all overflow water must
pass shall be provided to trap large solids.
5. The skimmer shall be provided with a device to prevent air lock in the suction line. An
equalizer pipe shall be used and shall provide an adequate amount of water for pump suction
if the water of the swimming pool drop below the weir level.
6. The equalizer piping and fittings shall be sized to meet the capacity requirements of the
filter and pump and shall be in no case less than 2 inches in diameter. The pipe shall be
connected to the main drains. The equalizer float valve assembly shall remain tightly closed
under normal operating conditions but will automatically open when the water level drops
below the lowest weir operating level.
7. The equalizer fitting shall be a design to reduce the possibility of hair entrapment in the
fitting.
8. The skimmer shall be of sturdy, corrosion-resistant materials.
9. Each skimmer shall be equipped with a variable orifice trimming device to allow balancing
of flow.
10. Skimmers shall be NSF approved.
2.2
PUMPING EQUIPMENT
A.
Any proposed substitutions shall include a mechanical drawing incorporating all required changes
in layout, piping and valves. The cost of such changes shall be included in the price of the
substitute. CONTRACTOR to confirm voltage prior to ordering pump. All motors shall be
capable of continuously running without overloading at any point on the characteristic curve of
the pump without overload or harm. CONTRACTOR shall confirm by 1/4 inch scale shop
drawing that the pumps and filters to be provided will fit in the available space and can be
removed for servicing.
1. Pumps shall be certified by the National Sanitation Foundation (NSF) and bear the
certification mark.
2. Pump casing shall be cast iron fitted with a replaceable bronze case wear ring. Mechanical
seals shall be provided specific for a clear, mildly chlorinated water application. Pump
impeller shall be enclosed type of cast bronze, statically and dynamically balanced, and
trimmed for the specified design conditions. All bronze materials shall be suitable for use in a
chlorinated environment. Suction and discharge flanges shall be provided and tapped for
gauge connections. Provide steel or cast iron bases.
3. Pump motor shall be totally enclosed, fan cooled (TEFC) and premium efficiency of the
horsepower and speed specified. A pump requiring larger horsepower shall not be acceptable.
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Center For Aquatics & Tennis
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4. Provide a hair and lint strainer, for each pump, of fiberglass or epoxy coated stainless steel
construction with a clear observation top in the sizes (or pipe sizes) indicated on the drawings.
Verify and coordinate pipe and pump suction sizes in the field. Feature pump strainers to be
of a low pressure drop full-open or a tapered eccentric reducing type. Straight reducing type
strainers will not be acceptable without the addition of an approved tapered eccentric reducer
between the strainer and the pump (in which case, sufficient space in the pump pit must be
verified). Provide a stainless steel basket with at least 4 times the free open area as the inlet
pipe, and one spare basket with each strainer. Recirculation pump strainers to be a straight
non-reducing type with an approved tapered eccentric reducer at the front of the pump at all
recirculation pumps.
a. Basis of Design: As manufactured by MerMade Filter Inc., Neptune/Benson Inc., Fluidtrol,
or Nemato
5. Provide an emergency shutoff switch for each body of water to completely shut down all of
the respective pumps associated with each body of water. The system shall include a clearly
labeled emergency shutoff switch for all pool and spa pumps per Article 680-38 of the NEC.
The Architect shall approve the location of the switch(es). The wiring shall be done per
Division 26 and coordinated with the pool wiring.
6. Provide a 15-minute spa timer for each hydrotherapy pump. The Architect shall approve the
location of the timer(s). The wiring shall be done per Division 26 and coordinated with the
pool wiring.
7. Provide a coating to protect all non-bronze pumps from corrosion. Coating shall be fusion
bonded epoxy coating on all wetted parts. Sandblast to bare, white metal. Thickness shall be
8 to 12 mils (heavy film). Verify thickness by non-destructive testing. Coat parts as
recommended by manufacturer, including preheating parts to 400 degrees and electrostatic
deposition or fluidized bed technique. Provide primers if required to resist chlorinated water
<10 ppm. Coating shall be Scotchkote 134 manufactured by Fusecote or approved equal, 9658
Alpaca St., South El Monte, CA 91733, 818-443-6760, 213-886-2258, or fax 818-443-9142,
or approved equal.
8. Entire pumping unit shall be mounted on a base using cap screws to preserve the back pullout feature of the pump. Pumps shall not be secured with floor studs. The pump base shall
be coated with the same epoxy coating as the pump. An OSHA approved guard shall protect
coupling and exposed rotating components of the pump and motor where required.
9. Recirculating Pumps and Motors
a. Competition Pool Recirculation Pump #1
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 1,100 GPM against 70 ft.
TDH with an efficiency of no less than 86% and a required net positive suction head
(NPSHr) no greater than 11.25 ft. It shall be provided with a 25 HP, 1750 RPM, 460
VAC, 3 phase, 60 cycle electrically driven motor meeting these specifications.
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Flagstaff, AZ
Center For Aquatics & Tennis
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a) Basis of Design: The system design is based upon Paco. Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
b. Competition Pool Recirculation Pump #2
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 1,100 GPM against 70 ft.
TDH with an efficiency of no less than 86% and a required net positive suction head
(NPSHr) no greater than 11.25 ft. It shall be provided with a 25 HP, 1750 RPM, 460
VAC, 3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco. Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
c. Dive Pool Recirculation Pump #1
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 800 GPM against 80 ft.
TDH with an efficiency of no less than 84% and a required net positive suction head
(NPSHr) no greater than 20 ft. It shall be provided with a 20 HP, 1750 RPM, 460 VAC,
3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco. Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
d. Dive Pool Recirculation Pump #2
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 800 GPM against 80 ft.
TDH with an efficiency of no less than 84% and a required net positive suction head
(NPSHr) no greater than 20 ft. It shall be provided with a 20 HP, 1750 RPM, 460 VAC,
3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco. Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
e. Spa Recirculation Pump
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 106 GPM against 70 ft.
TDH with an efficiency of no less than 66% and a required net positive suction head
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Center For Aquatics & Tennis
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(NPSHr) no greater than 7.50 ft. It shall be provided with a 5 HP, 1750 RPM, 460
VAC, 3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco. Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
f. All recirculation pumps shall be provided by the same manufacturer. Confirm voltages
prior to ordering pumps.
10. Other System Pumps and Motors
a. Provide one (1) portable utility pump(s). The pump(s) shall be a 1 HP, 3600 RPM,
115/230 volt, 1 phase, 60 cycle unit capable of 60 GPM at 25 ft. TDH.
1) Basis of Design: Pump to be a Godwin GSP10 or approved equal.
b. Provide one (1) self-priming pump for water surface agitation and pool draining as shown
on the drawings. Pump to draw water from the deep main drain and deposit water back
into the pool at the agitator nozzle. The pump shall be 1 HP, 3450 RPM, 208/230/460 volt,
3 phase, 60 cycle unit capable of 100 GPM at 25 ft. TDH.
1) Basis of Design: Pump to be a Pentair Whisperflo WFK 4 or approved equal.
11. Feature Pumps and Motors
a. Spa Hydrotherapy Pump #1
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 250 GPM against 45 ft.
TDH with an efficiency of no less than 75% and a required net positive suction head
(NPSHr) no greater than 9.00 ft. It shall be provided with a 5 HP, 1750 RPM, 460
VAC, 3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco, Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
b. Spa Hydrotherapy Pump #2
1) Provide one (1) horizontally mounted centrifugal pump, as shown on the drawings and
described in these specifications. Each pump is to be of a straight centrifugal, end
suction, bronze fitted, close coupled type, capable of pumping 250 GPM against 45 ft.
TDH with an efficiency of no less than 75% and a required net positive suction head
(NPSHr) no greater than 9.00 ft. It shall be provided with a 5 HP, 1750 RPM, 460
VAC, 3 phase, 60 cycle electrically driven motor meeting these specifications.
a) Basis of Design: The system design is based upon Paco, Pumps manufactured by
ITT Marlow, Griswold, or Aurora shall all be considered, provided they meet the
requirements.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
c. Air Blower
1) Provide two (2) regenerative air blowers for the spa hydrotherapy air intake lines. Each
blower shall be capable 30 SCFM at 50 inches of H2O and include an internal muffler
for noise dampening. The construction shall be of cast aluminum housing, impeller and
cover. Unit to be a 1 HP, 3 phase, 60 cycle, 230/460 volt as manufactured by Rotron,
Inc. Model DR404AL72M or approved equal. The Rotron, Inc. service and technical
representative is Fluid Technology, (303) 233-7400. The motor for the air blower shall
be inverter duty rated and compatible to work in conjunction with a VFD. Contractor to
confirm motor compatibility with manufacturer prior to purchasing. Provide pressure
relief valve (515093), pressure gauge (271949) and a gate valve, which can adjust
excess air bleed off. Air blower to be connected directly to 3” air intake line and
mounted a minimum of 18” above the Spa water level per manufacturer’s instructions
for proper operation. Air blower pump to be interlocked with respective Spa
Hydrotherapy Pump to ensure that both pumps are turned on at the same time for
optimum performance of the hydrotherapy jets.
B.
Variable Frequency Drive Starters
1. Provide VFD starters for the competition pool, dive pool, spa recirculation pumps and feature
pumps (Seven (7) Required). VFD shall be a product of H2Flow Controls, Pentair AcuDrive,
Neptune Benson Weg, or approved equal.
a. Basis of Design: Eco-Flo-C by H2 Flow Controls.
2. The IP54 or NEMA 12 enclosure shall be of non-corrosive construction. External enclosure
surfaces shall be corrosion resistant. VFD’s installed within a supplementary panel shall not be
vented or cooled from ambient external air. With the exception of the VFD’s heatsink and
water-resistant heatsink fan, the VFD’s electronics shall be fully sealed within the NEMA 12
enclosure. Vented enclosures are not permitted.
3. The VFD shall convert incoming fixed frequency three phase AC power into a variable voltage
and variable frequency three phase output utilizing pulse width modulation. Advanced Space
Vector Control will be utilized to reduce motor heating and provide precise control of the AC
motor.
4. The VFD shall include a built-in Line Filter to mitigate harmonic distortions being transmitted
back through the supply lines.
5. The VFD shall include a full wave diode bridge rectifier. The drive shall maintain a
fundamental power factor near unity regardless of speed or load. SCR front ends which
produce line notching are not acceptable.
6. The VFD shall utilize DC capacitors to filter out bus ripple and provide smooth DC power to
the transistor section.
7. The VFD shall utilize IGBT transistors to produce a pulse width modulated output. SCR’s are
not acceptable.
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Flagstaff, AZ
Center For Aquatics & Tennis
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8. The VFD shall have a full load amp rating which exceeds or meets NEC Table 430-150. The
VFD shall be able to provide full rated output current continuously, and shall be able to
provide 110% of its variable torque rating and 150% of its constant torque rating for one
minute.
9. The VFD shall utilize space vector control to reduce motor harmonics and torque ripple.
10. The VFD shall include the ability to program Load Curve Monitoring Using Motor Shaft
Power, to detect any of the following abnormal pump conditions: Run Dry/Loss of Prime;
Cavitation; Dead head/Closed Valve; Worn impeller; Blocked Filter; Bearing Failure/Wear
Detection. Protection using measured current (Amps), shall not be acceptable.
11. The VFD shall include Ramping of the DC Bus, to eliminate VFD failures associated with
turning supply on and off using a contractor or disconnect, and to detect input phase failure
and asymmetries (imbalanced supply).
12. The VFD shall provide a display with selectable readout of parameters, including: Speed;
Torque; Motor Shaft Power; Electrical Power; Current; Output Voltage; Frequency; Heatsink
Temperature; Motor Temperature; Run Time; Energy Consumed; Mains Time.
13. The VFD shall be capable of interfacing to an analog output signal from a Flow Transducer
and displaying measured flow in GPM.
14. The VFD shall include the capability for copying of settings when multiple similar pumps are
involved. Settings established in one VFD shall be transferred to the others via a removable
keypad.
15. The VFD Control Panel shall include a Programmable Aquatic Controller (Controller) with an
operator backlit LCD Graphical / Alpha / Numerical Display, housed in a separate NEMA-4X
enclosure. The Controller shall comprise the following features:
a. Real Time Clock
b. Password protection
c. Hard-wired tamper protection feature
d. Custom software to control the VFD via a Modbus communication network
e. Automatic Flow Control. The Controller and VFD are to automatically adjust the pump’s
speed in order to compensate for a filter becoming dirty. The system is to maintain a
minimum flow (GPM) required to meet State mandated turnover rates.
f. Programmable speeds for daytime and nighttime turnover rates.
g. Nonvolatile memory. All programmed parameters as well as the real time clock settings
shall be maintained in the event of a power outage.
h. Manual Backwash Control. Single button control that will ramp the pump’s speed to a
higher level for backwashing.
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Flagstaff, AZ
Center For Aquatics & Tennis
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i. Programmable time duration for backwash speed
j. Automatic Backwashing. The Controller shall accept an input from an Automatic
Backwashing system. The Controllers program shall be written so that such a signal will
automatically initiate a higher speed for the pump until the signal is removed.
k. The Controller shall be capable of interfacing to an analog output signal from a Flow
Transducer and displaying measured flow in GPM
l. Password protected reprogram function
m. Password protected speed override
n. Electronic phase rotational check
o. Automatic detection of flow / pressure feedback signal
p. Accumulated energy savings screen
16. VFD Control Panel shall include a Lightning Arrestor.
17. Installations that require the VFD panel to be located greater than 300 feet from the Pump
Motor shall require the installer to provide a suitably rated Load Reactor.
18. Installations to 460V Non-VFD rated motors shall require the installer to provide a high
quality Load Reactor type V1K from Trans Coil Industries.
19. Installations in locations where a Power Disconnect is not within ‘line of sight’ of the VFD
Control Panel, or where deemed necessary by local electrical codes, shall require the installer
to provide a suitably rated Circuit Breaker Disconnect.
20. The VFD shall accept a supply voltage of -15% / + 10% of its stated supply rating
21. The Controller and VFD shall be electronically lockable in order to prevent unauthorized or
unintended program changes.
22. Motors to which the VFD is to be installed shall have a minimum insulation of “Class F”.
C.
Pump Gauges
1. Pressure gauges shall be installed on the discharge of the pumps.
2. Compound gauges shall be provided at the intake port of the pumps, after the hair and lint
strainer.
3. Gauges shall be liquid filled, 316L stainless steel bourdon tube type with a minimum 2-1/2
inch diameter dial, high impact polypropylene or stainless steel case, corrosion resistant white
scale with black divisions and numerals, 300 Series stainless steel heavy duty rotary bushed
movement, , black enameled balanced Micrometer pointer.
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Center For Aquatics & Tennis
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a. Basis of Design: Gauges shall be as manufactured by Weksler Instrument Corporation or
approved equal.
4. Scale ranges shall be selected to indicate the normal system operating pressure of each system
or location within the system. Pressure ranges shall be calibrated in psig (0-60 psi) and
compound gauge shall be calibrated in inches of mercury (0-30 in Hg / 0-60 psi).
5. A stainless steel filter type pressure snubber shall be provided for each pressure gauge installed
consisting of a 3/8 inch diameter by 1/8 inch thick micro metallic stainless steel filter and
placed in the line just before the pressure gauge. Provide isolation brass valves or brass gauge
cocks at each gauge for easy replacement and maintenance.
D.
2.3
Provide link seals for all pipe penetrations as indicated on the drawings. Locations will include
the surge tank, the pump pit, foundation wall penetrations (if expansive soils are present) and
other locations as noted. Link seals shall be provided in the sizes and quantities shown on the
drawings and installed to provide a flexible watertight penetration. Metal parts shall be made of
316L stainless steel. Links shall form a continuous rubber seal that is tightened with a series of
stainless steel bolts to form a watertight seal. Link seals shall be manufactured by Thunderline
Corporation, Calpico Inc. or approved equal. The CONTRACTOR is to provide factory plastic
wall sleeves of the appropriate sizes designed for the specific application and seal size and type.
Each sleeve is to have an integrated water stop.
FILTRATION EQUIPMENT
A.
Regenerative Media Filters with Pre-Coat in a Closed Loop
1. Filter System
a. Basis of Design
1) Competition Pool: The filter system under this section shall be a Defender Automatic
Model SP-55-48-2076, or approved equal, as detailed on the drawings.
2) Dive Pool: The filter system under this section shall be a Defender Automatic Model
SP-49-48-1548, or approved equal, as detailed on the drawings.
3) Spa: The filter system under this section shall be a Defender Asero Model SP-29-36200, or approved equal, as detailed on the drawings.
b. It is the intent of these specifications to describe a filter system complete with all accessory
items supplied and warranted by one manufacturer.
c. The primary components of the system consist of the main filter tank, flex tube filter
elements, element assembly, bump mechanism, vacuum transfer system, sight glass,
pressure gauge panel, inspection (viewing) window, valves and automatic filter controller.
d. All components and related subassemblies shall be factory assembled and tested prior to
shipment.
2. Filter System Capacity
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Center For Aquatics & Tennis
Design Development - September 13, 2013
a. Competition Pool
1) The filter system shall have a capacity of filtering 649,411 gallons in 4.92 hours at a rate
of 2,200 gallons per minute.
2) The filtration system shall consist of one (1) filter tank with a total designed effective
filter surface area of 1,625 square feet and operate at a rate of 1.35 gallons per minute
per square foot of filter area.
b. Dive Pool
1) The filter system shall have a capacity of filtering 494,628 gallons in 5.15 hours at a rate
of 1,600 gallons per minute.
2) The filtration system shall consist of one (1) filter tank with a total designed effective
filter surface area of 1,211 square feet and operate at a rate of 1.32 gallons per minute
per square foot of filter area.
c. Spa
1) The filter system shall have a capacity of filtering 1,548 gallons in 0.24 hours at a rate
of 106 gallons per minute.
2) The filtration system shall consist of one (1) filter tank with a total designed effective
filter surface area of 117 square feet and operate at a rate of 0.91 gallons per minute per
square foot of filter area.
3. Filter Tanks
a. The filter tanks shall not be less than 33” (Spa) / 54” (Dive Pool) / 61” (Competition Pool)
in diameter with a 60” side shell, suitable for 50 psi working pressure and hydrostatically
tested to 75 psi. Tank shell shall be not less than ¼” thick. Bottom dished head shall be not
less than ¼” thick. Top flat head shall be not less than 1 ½”. thick. All material to be Type
A-36 carbon steel.
b. All welding shall be performed by qualified operators. Joints shall be butt or fillet welded
inside and out by manual or automatic process. Welded joints shall have complete
penetration and fusion with little or no reduction of the thickness of the base metal. Welds
shall be free of coarse ripples, grooves, overlaps, abrupt ridges or valleys. All welded
surfaces shall be chipped and brushed clean, when necessary, leaving no slag or splatter.
c. Tank legs shall be constructed of 6” x 2 ½” channel legs ¼” thick. 24”, 27” and 33’ filters
shall have (3) legs. 41”, 49” and 55” filters shall have (4) legs. The material shall be Type
A-36 carbon steel. Bearing plates shall be 10” x 5” x 1/4” type 304L stainless steel. Each
bearing plate shall have (2) 5/8" drilled holes to secure to the floor with the ½" x 4 ½"
stainless steel concrete anchors provided. The legs shall be designed with bolted
connections to minimize overall tank height for shipping and access into the mechanical
room.
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Center For Aquatics & Tennis
Design Development - September 13, 2013
d. The tank heads shall be bolted to the shell with 7/8” diameter T304 stainless steel threaded
rods and nuts, 9” on center around the tank perimeter.
e. Tanks shall be equipped with a UL listed grounding lug.
f. Tanks shall incorporate connections for filter influent, effluent, drain; 1-1/2" vacuum
transfer piping, 4” viewing window, and lift shaft gland. Refer to the drawings for pipe and
connection sizes.
g. Tanks shall include brackets for mounting of automatic controller, gauge panel, filter /
regulator, vacuum transfer blower and vacuum hose rack.
h. The competition pool filter tank shall include an integrally mounted hydraulic lifting device
(davit). The davit assembly shall be designed to lift the filter head and include a pivot
mechanism allowing the head to rotate 180°, for access to the tube sheet.
4. Flexol 3000 Interior Lining
a. All interior surfaces shall be grit blasted to white metal condition with a 2-3 mil profile.
Blasted surfaces shall be cleaned of all dust or blast residue and primed as soon as is
practical on the same day blasting is done.
b. When priming has dried the lining process will begin. If prime coat has cured for over
twenty-four hours, a refresher coat will be applied.
c. Flexsol 3000 shall be an elastomeric polyurethane, 100% solid plural component lining.
Hardness shall be 70 durometer on the shore D scale. Break tensile strength shall be 2460
psi with elongation of 25-30%.
d. Application of Flexsol 3000 lining shall be done by experienced applicators using a high
pressure, high temperature plural component system. All wetted surfaces including flange
faces, manway rings and manway covers shall be lined to 120 mils +/- 5 mils DFT.
e. Hardness shall be verified after curing to ASTM D 2240 standard.
f. Flexsol 3000 lining shall meet the NSF toxicity standard unconditionally and shall be
approved for use with the NSF approved filter.
5. Exterior Coatings
a. All exterior surfaces shall be grit blasted to white metal condition with a 2-3 mil profile.
Blasted surfaces shall be cleaned of all dust or blast residue and primed as soon as is
practical on the same day blasting is done.
b. When priming has dried the coating process will begin. If prime has sat for over twentyfour hours, a refresher coat will be applied.
c. Two coats of high solids enamel shall be applied for a total developed film thickness of 5-8
mils.
d. Manufacturer is to supply min.16 oz of high solids enamel touch-up paint.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
6. Internal Components
a. The filters shall consist of flex tube elements, filter tube sheet, stainless steel lift shaft and
internal flow diversion assembly.
b. The filter elements shall be flexible tubes that provide the support structure for the media.
The outer wall of each element shall be fabricated of multi-filament high strength polyester
braid. Each element shall have an internal T304 stainless steel spring, which acts a support
structure for the braided filament.
c. The filter element tube sheet shall be fabricated of T304 stainless steel and provide both
support for the top of the element assembly as well as water tight seal to prevent media
from escaping the filter tank.
d. The lifts shaft shall be fabricated from T304 stainless steel and provide the internal
connection between the filter element tube sheet and the external bump mechanism.
e. The filter influent connections shall be fitted with a T316 stainless steel flow diversion
assembly to eliminate disturbance to the filter elements during operation.
f. All stainless steel wetted fasteners shall be Type 304.
7. Bump Mechanism
a. Competition Pool and Dive Pool: The bump mechanisms shall include a pneumatically
operated tire mounted externally on the filter tank heads. The tire is alternately pressurized
then depressurized causing the connected filter element assembly to move in an upward
then downward fashion. This movement shall provide the means of dislodging the media
and accumulated solids, which then recoat the filter element.
b. Spa: The bump mechanism shall be a manually operated lever and spring combination that
is mounted externally on the filter tank.
8. Vacuum Transfer System
a. The vacuum transfer systems shall be provided to allow the recharging of media into the
filter for either bag or bulk media.
b. The vacuum blowers shall include a 1.5 HP TEFC 115/230v single phase motor 50/60
Hz.
c. In-line filters with dual connections shall be provided to prevent dust and media from
being drawn into the blowers.
d. Provide three (3) 1-1/2” SCH 80 PVC ball valves: for the vacuum drain line, the blower
inlet and the vacuum hose.
e. Provide 10 feet of 1-1/2” vacuum hose with required fittings.
9. Automatic Controller
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
a. The automatic controllers shall provide total control of the system's filtration and
regeneration cycles, and provide all necessary equipment interlocks and timing mechanisms
to execute the filter program.
b. The controllers shall include an adjustable pressure switch, factory set to 50 psi. The
switch shall stop the recirculating pump and close the pneumatic valves if air pressure
falls to 50 psi.
c. The controllers shall contain a microprocessor that will activate the following functions
of the system:
1) Bump cycle / manual or automatic
2) Pre-coating of the filter elements
3) Stopping and starting of the main recirculating pumps
4) Opening and closing of pneumatically operated valving
5) Vacuum transfer system
6) Heater cool down delay
7) Auxiliary contacts to interlock chemical control or other equipment
8) Keyed switch to activate continuous, intermittent bump cycle for flex tube cleaning.
d. The controller panel shall display the following functions:
1) Filter status
2) Pre-coat status
3) Recirculating pump status
4) Vacuum transfer pump status
5) System power
e. The controller enclosure shall be NEMA 12.
f. The RMF automatic controller will provide signal power to the main recirculating pump
motor starters. The unit is required to be a device or variable frequency drive (VFD) and
is to be installed with control wiring by the electrical contractor.
g. The RMF shall be 120V, 1 phase, 30 amp rated and shall be UL labeled.
10. Flow Meter
a. A digital flow meter shall be included with a 4-20mA 0-10 VDC analog output.
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Center For Aquatics & Tennis
Design Development - September 13, 2013
b. The flow meters shall be wired into the VFDs to provide automatic speed control of the
filter pump motors.
c. The VFDs shall compensate for varying filter head losses by maintaining the specified
flow rate with the 4-20mA output signal of the flow meters.
11. Filter / Regulator
a. Each filter shall include a combination filter / regulator. The regulator shall be adjustable
from 0 – 120 PSI. 1/2” F.P.T. connections shall be provided for field installation of air
lines.
12. Water Separator
a. One water separator with automatic drain shall be included for each air compressor
supplied. 1/2” F.P.T. connections shall be provided for field installation of air lines.
13. Air Compressor
a. The filtration systems will require (1) air compressor per mechanical room. The
following is the minimum requirement: 20 gallon tank, 2 HP 120 V, 1 phase, 15 amp, 5.2
CFM @ 90 psi, air pressure gauge, pressure relief valve, belt guard, pressure switch, air
filter.
14. Pneumatic Actuators
a. Each filter shall include pneumatic actuators for one (1) influent valve, one (1) effluent
valve and one (1) precoat valve.
b. The actuators shall be double acting with valve mounted drilling to ISO 5211.
c. The actuators shall include two (2) 1/4" FPT ports for open / close connections. Flow
control valves with quick connect fittings shall be provided at each port to allow speed
control adjustment for the open / close function of the actuators.
d. Materials of Construction
1) Body: aluminum alloy, extruded acc. to ASTM 6063, anodized acc. To UNI 4522
2) Ends: Die-cast in aluminum alloy acc. To ASTM B179, epoxy-polyester coated
3) Pistons: Die-cast in aluminum alloy acc. To ASTM B179
4) Pinion: Nickel-plated steel
5) Slideways: Acetal resin (LAT LUB 731320T)
6) Fasteners: AISI 304 Stainless steel
7) Springs: Epoxy coated steel, pre-compressed
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Center For Aquatics & Tennis
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8) Seals: NBR Nitrile rubber
9) Lubricant: MoS2
e. The actuators shall be factory lubricated to allow for 1,000,000 maneuvers.
f. The actuators shall have adjustable travel stops for both directions.
g. Working temperature limits: 4ºF to 186ºF.
15. Fiberglass Eccentric Reducing Flanged Precoat Tees
a. Eccentric reducing precoat tees shall be constructed of fiberglass with flanged
connections. The tee shall be equipped with influent, effluent connections as well as a
precoat line branch connection sized in accordance with the drawings.
b. Flanged connections shall be ANSI 125# dimensions.
c. Reducing tees shall include a 4” F.P.T. gauge connection.
d. Reducing tees shall be designed for 50 psi operating pressure as manufactured by
Neptune-Benson.
16. Solenoid Valves
a. Each filter shall include four-(4) single solenoid, 4-way valves mounted on a multistation manifold for operation of the pneumatic actuators and bump mechanism.
b. The solenoids valves shall include lighted DIN connectors.
c. The solenoid valves shall be factory lubricated and shall not require any field lubrication.
d. The solenoid valves with multi-station manifold shall be located on the bottom of the
automatic controller, factory wired and include quick connect fittings for attachment to
the pneumatic actuators and bump mechanism.
e. The solenoid valves shall be SMC Series SY 7000.
17. Valves
a. All valves 3" – 12” shall be constructed with cast aluminum ASTM S12A housing and
fully coated with Rilsan on all interior and exterior surfaces. Internal components include
EPDM resilient lining, Rilsan coated ductile iron disc and T304 stainless steel shaft.
Valves 14" and larger shall be constructed with cast iron housing fully coated with nylon
and with nylon coated ductile iron disc.
b. Valves shall be butterfly valves and shall be provided for the influent, effluent and
precoat lines.
18. Drain Requirements (By Others)
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
a. A sump pit or stand pipe is required for dumping spent media and rinsing tube elements.
b. To prevent overflow the sump or stand pipe drain piping shall be sized for 300 GPM
capacity.
c. If drain piping cannot be sized for 300 GPM, or if the sewer is at an elevation higher than
the filter tank drain, use the following minimum sump sizes:
1) Model SP-29: 200 gallons
2) Model SP-49: 620 gallons
3) Model SP-55: 850 gallons
d. Use a sump pump to transfer waste to sewer.
19. Packaging
a. For loading and unloading, filter tank diameters 24” – 41” shall be bolted to individual
wooden pallets. All tanks shall be shrink wrapped to prevent damage during transport.
b. The components shall be carefully packaged in a totally enclosed wooden crate to prevent
damage during transport.
20. Media
a. Media shall be expanded perlite with a median particle size of 37 microns. Percentage
retained on a +150 Tyler Mesh shall not be less than 8% or more than 25%. Darcy
permeability shall be at least 3.25 and have a maximum float of 5%.
b. The media shall contain no more than 1 tenth of one percent (.001) of crystalline silicate.
c. The media shall be certified by the manufacturer for use in the filter. The media shall be
NSF listed in Standard 61 and Standard 50.
d. The media shall be Celaperl 1000 as supplied by EP Minerals, or approved equal.
e. Each Defender filter shall be provided with six (6) charges of perlite media.
21. Quality Assurance
a. The Contractor shall have documented at least three (3) completed installations of the
proposed filtration system or a qualified manufacturer’s representative shall be required for
on-site installation supervision.
2.4
RECIRCULATION FITTINGS
A. Main outlets (main drains) shall be concrete sumps with 12 gauge PVC frame and PVC grating
and sized as shown on the plan. Grate openings shall not exceed 11/32 inch in width, providing
an open flow area to allow water velocity not to exceed 1.0 fps. The grate shall be PVC and fit
closely and flush with top surface of frame, and secured to frame with vandal proof fasteners.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
Provide additional stainless steel flanged pipe connections where required by the drawings for
approved equalizer lines. Provide no-leak seal flange at the midpoint of the boxes. All exposed
edges of main outlets shall be rounded and smooth, free of burrs and sharp edges. All main
drain covers shall comply with the Virginia Graeme Baker Act and ASME A112.19.8-2007.
B.
Provide hydrostatic relief valves consisting of a 2” cycolac relief valve connected to a FPT
commercial style Schedule 80 PVC collector tube. The collection tube shall have seepage
holes, 3/8 inch in diameter, and shall be screwed securely to the valve body. The hydrostatic
relief valve shall be designed to seal with minimum pressure and shall have a non-plugging,
self-cleaning raised valve seat. Hydrostatic relief valve to be Hayward Number SP1056 with
collector tube model Hayward Number SP1055, or approved equal.
C.
Concrete drop out boxes (converters) shall be concrete sumps with 12 gauge 316L stainless
steel frame and PVC grating and sized as shown on the plans. Grate openings shall not exceed
11/32 inch in width, providing an open flow area to allow water velocity not to exceed 1.0 fps.
The grate shall be PVC and fit closely and flush with top surface of frame, and secured to
frame with vandal proof fasteners. Provide no-leak seal flange at the midpoint of the boxes.
D. Wall inlet fittings shall be Hayward Model SP-1421-E (1 inch opening) cycolac directional
inlet mounted in Hayward Model SP-1022S or approved equal from Paddock, Sta-Rite, or
Swimtime.
E.
Static water line inlet fitting for the automatic water level controller shall be provided
consisting of a cycolac body, grate and construction shield. The body shall have a 1-1/2 inch
solvent weld connection and provided with an integral molded "knock-out" membrane to
facilitate line pressure testing. The static water line inlet fitting shall be a Hayward SP-1026
mounted in a Hayward Model SP-1022S or approved equal.
F.
Adjustable floor inlet fittings shall be provided each consisting of an ABS plastic body and adjusting top plate with a positive locking device. A spanner wrench shall be provided to
facilitate flow adjustment. The inlet body shall be provided with a 2-inch cycolac solvent weld
connection and internal NPT threads to facilitate line pressure testing. Floor inlet fittings shall
be Sta-Rite No. 8417-0000-White or Sta-Rite No. 8417-0200-Black or approved equal.
G.
Sight sump frame(s) and cover(s) shall be size appropriately to provide access to the vertical sight
sump standpipe as indicated in the plans. Frame and cover shall be Zurn model #ZANB-1461-14VP, nickel bronze with polished scored top, vandal proof screws or approved equal.
H.
Valve box covers and frames that are not specified on the drawings or specifically identified as
another size or material shall be Zurn model #ZANB-1461-12-VP, nickel bronze with polished
scored top, vandal proof screws or approved equal. Valve box covers and frames that are not
specified on the drawings or specifically identified as another size or material shall be a PVC
frame and a solid PVC lid by Lawson Aquatics supplied by Neptune-Benson. Color selection
shall be by the Architect.
I.
Water surface agitators shall be as detailed on the plans and connected to the filtered water supply
piping. Construction shall be machined or cast bronze/brass. Face plates shall be removable for
alignment or cleaning by using security key part #WMF082. The water inlet connection shall be
1”. The unit shall be the Stream Jet (WMD105) for deck level (horizontal surface) mounting, by
Crystal Fountains (905) 660-6674.
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J.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Anti-vortex plates shall be provided at the suction points of the main recirculation pump(s) in the
surge tank(s). Each plate shall be connected to the suction pipe via a PVC flange and shall be ½
in. thick with minimum dimension of at least 2.5 times the connecting pipe diameter. The plate
shall be located 4 inches above the finished floor of the surge tank. Four (4) 3/4 in. stainless steel
threaded rods, nuts, anchor bolts and washers shall be used to fix the offset distance and provide a
secure base for the suction pipe.
K. Hydrotherapy inlet fittings shall be provided consisting of a cast bronze or cycolac venturi body
with 1-1/2 inch water inlet pipe connections and 1/2 inch air intake connection. A 1/8-inch IPS
thread shall be provided in the inlet throat to permit hydrostatic pressure testing of piping system.
The inlet shall be designed to operate at 25 GPM at a working pressure of 15 PSI and installed as
shown on the drawings. Jet Body to be Waterway Model #210-5950 with Waterway Adjustable
Fitting Model #210-6040, (Waterway Monster Fitting Model #210-8750 / Waterway Whirlpool
Fitting Model #210-9790), or approved equal. Provide fitting adjustment tool from Waterway,
Model #210-1770A, or approved equal.
2.5
PIPING SYSTEMS
A.
General
1. Provide all recirculating piping between the pool(s) and the filter room, fill receptor and all
interconnecting piping to and from the chemical feed systems and chemical controller.
2. Provide all necessary pipe supports and support systems required to support all associated
piping and valves.
3. Provide all other tubing, conduit, or piping associated with equipment specified herein.
Coordinate with other trades.
B.
Pipes
1. Pipe routing as shown and detailed on the contract drawings is diagrammatic only and is not
intended to show minor details or exact locations of piping systems. Installation is required
to be adjusted to accommodate interference and adjustments anticipated and encountered.
Pipe sizes on plans refer to nominal inside diameter of the pipe.
2. All PVC swimming pool piping shall be NSF approved and conform to the requirements of
ASTM D-1785.
3. All PVC pipes and fittings shall be the product of one manufacturer. Approved manufacturers
of PVC piping are Eslon, Harvel, and Chemtrol or approved equal.
4. Swimming pool piping above the floor or deck in the filter room shall be Schedule 80 PVC.
5. Swimming pool piping below the filter room floor or deck shall be NSF approved, Schedule 80
PVC.
6. All swimming pool piping under the pool floor shall be NSF approved, Schedule 40 PVC and
concrete encased. All transitions between Schedule 40 and Schedule 80 shall be encased in
concrete.
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Center For Aquatics & Tennis
Design Development - September 13, 2013
7. All below grade swimming pool piping not located beneath the pool floor can be backfilled
with native granular material free of ice, clay, debris, organic matter, and rocks larger than 4"
across their greatest dimension, and per recommendations indicated in the project geotechnical
report.
8. The influent and effluent lines to the heat exchanger unit shall be CPVC. Connections
between metallic piping and/or equipment and PVC shall be flanged. Molded fittings shall be
as manufactured by Asahi, Eslon, Chemtrol, Spears, or acceptable substitute. Fabricated
fittings shall be as manufactured by Harrison Machine, Plastinetics, or acceptable substitute.
9. Vertical sight sump piping shall be NSF approved, Schedule 40 PVC. Horizontal sight sump
piping shall be NSF approved, Schedule 40 PVC that is perforated and wrapped with fabric
and have 3/8” diameter holes located top and bottom on 4 ft centers. Horizontal sight sump
piping shall extend 1 ft minimum beyond the main drain.
10. Chemical feed lines from chemical feeders to recirculation piping shall be Schedule 80 PVC
piping. Piping shall be hard piped into the recirculation plumbing. All required valves shall
be of all PVC construction.
11. All flanged plumbing connection hardware shall be stainless steel.
12. All materials shall be installed by workmen thoroughly skilled in their trades and all work shall
present a neat and mechanical appearance when complete. The CONTRACTOR, at no
additional expense to the Owner, shall replace or correct any work not judged acceptable by
the Architect, Owner’s testing agency, or their consultants.
13. All support hardware, brackets, fasteners, hangers, etc. installed in the surge tank shall be 316L
stainless steel.
14. No installation shall be made that will provide a cross-connection or interconnection between a
distributing supply for drinking purposes and the swimming pool, or between the pool and a
sanitary or storm water sewer system that will permit a backflow of water into the pool water
system.
15. All piping shall be hydrostatically (water) pressure tested for leaks before and after backfilling
to guarantee water tightness. Pneumatic (air) pressure test not allowed.
16. The CONTRACTOR shall provide 1/4” PVC water stops for this work for watertight
penetration of concrete walls. Water stops shall be round and the O.D. shall be sized to 150%
of the O.D. of the pipe. The water stops shall be thermo-welded to the pipe from both sides
and shall be located at the centerline of the wall being penetrated prior to placing the concrete
to assure a watertight seal.
17. CONTRACTOR must adhere to all the applicable provisions in Division 22 - Plumbing,
"General Provisions" and "Basic Materials and Methods" for installation of piping system.
18. All mechanical equipment to be connected into the recirculation piping system shall be done
so using flanged or union connections.
19. Provisions shall be made to purge all pipes in the system.
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Center For Aquatics & Tennis
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20. Concentric reducers shall be fiberglass by MerMade Filter, Inc., or equivalent reducers of
schedule 80 PVC construction.
C.
Pipe Hangers and Supports
1. Manufacturer
a. Subject to compliance with these specifications, pipe hanger and support systems shall be
manufactured by Cooper B-line (basis of design), Inc, TOLCO, and Anvil International or
approved equal.
2. Hangers
a. Pipes 2 inches and smaller
1) Adjustable steel clevis hanger, B-Line models B3100 or B3104.
2) Adjustable steel swivel ring (band type) hanger, B-Line model B3170.
b. Pipes 2-1/2 inches and larger
1) Adjustable steel clevis hanger, B-Line model B3100.
2) Adjustable steel yoke pipe roll, B-Line model B3114.
3. Multiple or Trapeze Hangers
a. Trapeze hangers shall be constructed from 12 gauge roll formed ASTM A1011 SS, Grade
33 structural steel channel, 1-5/8 by 1-5/8 inch minimum, B-Line B22 strut or stronger as
required.
b. Mount pipes to trapeze with 2 piece pipe straps sized for outside diameter of pipe, B-Line
B-2000 series.
4. Wall Supports
a. Pipes 2-1/2 inches and smaller
1) Steel offset “J” hook hanger, B-Line model B3600.
b. Pipes 3 inches and larger
1) Welded strut bracket and pipe straps, B-Line models B3064 and B2000 series.
2) Welded steel bracket B-Line model B3066 or B3067 with roller chair or adjustable steel
yoke pipe roll. B-Line model B3120 or B3110.
5. Floor Supports
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
a. Electroplated carbon steel adjustable pipe saddle and nipple attached to steel base stand
sized for pipe elevation. B-Line model B3093 and B3088T or B3090 and B8088. Pipe
saddle shall be screwed or welded to appropriate base stand.
6. Vertical Supports
a. Steel riser clamp sized to outside diameter of pipe, B-Line model B3373.
7. Plastic Pipe Supports
a. V-Bottom clevis hangers with galvanized 18-gauge continuous support channel, B-Line
models B3106 and B3106V, to form a continuous support system for all plastic pipes
smaller than 1 inch or flexible tubing.
b. A vented and sloped continuous PVC Schedule 40 pipe no smaller than 1-1/2 inch outside
diameter will be used to route flexible tubing with the appropriate pipe supports.
8. Supplementary Structural Supports - Design and fabricate supports using structural quality
steel bolted framing materials. Channels shall be roll formed, 12 gauge ASTM A1011 SS
Grade 33 steel, 1-5/8 inch or greater as required by loading conditions. Submit design for pipe
tunnels, pipe galleries etc. for approval. Use clamps and fittings designed for use with the strut
system.
D.
Hanger Attachments
1. Upper Attachments
a. Beam Clamps
1) Beam clamps shall be used where piping is to be suspended from building steel. Clamp
type shall be selected on the basis of load to be supported, and load configuration.
2) C-Clamps shall be locknuts and cup point set screws similar to B-Line model B351L or
B3036L. Top flange c-clamps shall be used when attaching a hanger rod to the flange of
structural steel, B-Line model B3034 or B3033 or approved equal. Refer to
manufacturers recommendations for set screw torque. Retaining straps shall be used to
maintain the clamp position on the beam where required.
3) Center load beam clamps shall be used where specified. Steel clamps shall be B-Line
models B3050 or B3055. Forged steel beam clamps with cross bolt shall be B-Line
B3291-B3297 series or approved equal as required to fit beams.
b. Concrete Inserts
1) Cast in place spot concrete inserts shall be used applicable, either steel or malleable iron
body, B-line B2500 or B3014 or approved equal. Spot inserts shall allow for lateral
adjustment and have means for attachment to forms. Select inserts to suit threaded
hanger rods sizes, B-line models N2500 or B3014N series.
2) Continuous concrete inserts shall be used where applicable. Channels shall be 12 gauge,
ASTM A1011 Grade 33 structural quality carbon steel, complete with styrofoam inserts
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Center For Aquatics & Tennis
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and end caps with nail holes for attachment to forms. The continuous concrete insert
shall have a load rating of 2,000 lbs/ft. in concrete, B-Line models B22I, 32I, or 52I or
approved equal. Select channel nuts suitable for strut and rod sizes.
E.
Hanger Accessories
1. Hanger rods shall be threaded on both ends or continuously threaded rods of circular cross
section. Use adjustable lock nuts at upper attachments and hangers. No wire, chain, or
perforated straps are allowed.
F.
Hanger Finish
1. Indoor Finishes
a. Hangers shall be zinc plated in accordance with ASTM B633 OR shall have an electrodeposited green epoxy finish.
b. Strut channels shall be pre-galvanized in accordance with ASTM A653 SS Grade 33 G90
OR shall have an electro-deposited green epoxy finish.
c. Zinc Plated hardware is not acceptable for use in chemical rooms.
G.
Valves
1. Valves 3 inches and larger shall be butterfly type valves, with PVC body, 150# SWP with
stainless steel shaft, polypropylene disc and replaceable resilient seat bonded to a rigid shaft
and guaranteed for bubble tight shutoff from 27 inch vacuum to 150 PSI. Extended neck 2
inch beyond flanges for any insulated piping shall be provided with handle for manual
operation. All valve components shall be suitable for swimming pool chlorinated water
service. Butterfly valves shall be Georg Fischer Type 563, Asahi/America Type SP Pool-Pro,
Chemtrol Model-B, Simtech VP series, Colonial Valve 411 Series, or approved equal.
2. Valves smaller than 3 inches shall be PVC true union ball valves, full port, three-piece construction, blowout-proof stem, Viton seal with socket end connectors.
3. Check valves shall be a quick closing non-slam type, either self-aligning wafer or flanged type,
of corrosion resistant materials suitable for use in a swimming pool environment. Install check
valves in accordance with the manufacturer’s recommendations. Locate check valves at least 5
pipe diameters from pumps and fittings. Provide check valves as indicated, where two pumps
are used in parallel and on water feature or water play equipment systems where water is being
pumped significantly above the source pool water level. Check valves shall be either by
Technocheck Corp., model 5050, with epoxy coated cast iron body and bronze swing plates on
a stainless steel spring; or approved equal, for installation between 150 lb flanges.
4. Modulating float valve in the surge tank(s) shall have PVC body and stainless steel wafer disc.
All hardware shall be non-corrodible. The float-operated valves shall be provided horizontally
on the main drain lines in the surge tank(s). Valve shall consist of all non-corrosion
components including shaft, float arm, pins and floats. Valve shall be suitable for mounting on
a 125E class standard PVC flange. The float arm leverage weight and pivot lengths shall be
adjustable to obtain desired ratio of surge tank level change to pool gutter overflow level
NAU Proj. #09.860.131
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
change. Two floats and stabilizer required. Valve shall be Model FV-D XWB (Extra Weight
Ball) as manufactured by MerMade Filter, Inc. or approved equal manufactured by EPD.
5. Submerged valves up to 3 inches shall be PVC true union ball valves. Submerged valves over
3 inches shall be PVC bodied, wafer type, butterfly valves with stainless steel handle
extensions as required. Valves shall be by approved manufacturers listed above. Submerged
valves must be provided with all stainless steel connectors. The stem housing extensions shall
be properly supported and braced.
6. All butterfly type valves 8 inches and larger shall be fitted with a water tight gear operator.
7. All valves located 7 feet or greater off the floor shall be fitted with a chain operator.
8. All submerged valves, valves buried below grade, or valves not readily accessible, shall be
provided with a stainless steel reach rod and handle.
H.
Pipe and valve identification
1. All exposed pool piping shall be equipped with color coded flow directional arrows at thirty
(30) inch intervals per local and state swimming pool health code. The Contractor shall verify
that all pool piping identification is in accordance with all local and state health regulations.
2. All valves shall be identified with minimum 1-1/2 inch diameter brass tags stamped with
minimum 1/2-inch high numbers and attached to valves with #16 brass jack chain. (Plastic
laminate engraved tags with nylon attachment acceptable.) Valves shall be described as to
their function and referenced in the operating instruction manual and wall mounted piping
diagram to be prepared by the CONTRACTOR.
2.6
CHEMICAL TREATMENT SYSTEMS
A. Calcium Hypochlorite (Chlorinator Briquettes)
1. Shop drawings complete with a piping diagram depicting the location in which the dry
chlorination feeder is to be connected to the system shall be provided and approved prior to
installation. Installation of the system shall be as specified in the manufacturer’s directions
and no exceptions shall be taken. CONTRACTOR shall provide either of the calcium
hypochlorite systems specified in this section.
2. A factory-authorized representative shall provide training to the owner and the training shall be
video taped per 131100, Section 1.12 of the project contract documents.
3. Pulsar
a. Pulsar I System - Spa
1) The sanitization system shall be a Pulsar 1 system and shall operate in a non
pressurized manner to ensure optimum safety and ease of operation.
2) A post filter recirculation loop will be added to the main pool recirculation system as
part of the Pulsar 1 system. The recirculation loop will provide the vacuum to
evacuate the chlorinated solution.
NAU Proj. #09.860.131
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
3) The sanitization system shall be N.S.F. listed.
4) The sanitization system shall incorporate the principle of “Wave” technology. Water
shall rise in a “wave” from a submerged nozzle on to the grid of Briquette Tank
making contact with Pulsar Plus dry chlorinator briquettes. The briquettes shall be in
contact with the water creating a chlorinated solution which will fall into the
discharge tank. The chlorinated solution shall be drawn by vacuum from the
discharge tank and introduced into the recirculation system. The output shall operate
with a vacuum range between 5” and 29” Hg.
5) The vacuum is created by an Arch venturi, which is installed in the post filter
recirculation loop. The venturi is installed on the pools return line and a valve
situated between the inlet and outlet of the venturi loop is partially closed causing a
pressure differential thereby establishing flow though the venturi, which provides the
suction on the discharge valve evacuating the discharge tank. An emergency shutoff
valve shall ensure that water flow to the wave nozzles is shut off in the unlikely event
that the discharge tank has not emptied properly.
6) The system will operate with an inlet water pressure of 2-20 psig. The inlet water is
supplied from the pressure in the pool return line.
7) The briquette hopper shall have a capacity of twenty eight (28) pounds of Pulsar Plus
dry chlorinator briquettes.
8) The chlorine output shall be controlled by the inlet flow rate which has an operating
range of 0.2 – 1.05 GPM. In addition an ORP controller will be used for more precise
control. The inlet flow rate will allow a minimum available chlorine (AvCl) output of
0.5 lb/day and will allow a maximum available chlorine (AvCl) output of 28 lbs./day.
9) The sanitization system shall be capable of functioning in temperature between 40°F
and 130°F.
10) The sanitization system shall operate with Pulsar Plus dry chlorinator briquettes
having 65% minimum available chlorine with a 0.4 to 0.6% scale inhibitor (by
weight).
11) The sanitization system shall be capable of satisfactory performance if installed as
per the manufacturer’s recommendations (reference Pulsar 1 installation manual). An
Authorized Representative of the manufacturer shall be located within a reasonable
distance of the facility and shall be available to install and service the system as
required.
12) Manufacturer warrants parts (excluding electrical components) of the sanitization
system to be free of defects in workmanship and material for 2 years from date of
installation.
b. Pulsar IV System – Competition Pool and Dive Pool (1 Each)
1) The sanitization system shall operate in a non pressurized manner to ensure optimum
safety and ease of operation.
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
2) A post filter recirculation loop will be added to the main pool recirculation system as
part of the Pulsar IV system. The recirculation loop will provide the inlet water
supply to the chlorinator as well as the vacuum to evacuate the chlorinated solution.
3) The sanitization system shall be N.S.F. listed.
4) The sanitization system shall incorporate the principle of spray technology. Water
shall spray on to the grids of the briquette tank making contact with the Pulsar Plus
dry chlorinator briquettes. The briquettes shall be in contact with the water for a
short time creating a chlorinated solution which will fall into the discharge tank. The
chlorinated solution shall be drawn by the vacuum from the discharge tank and
introduce into the recirculation system. The output shall operate with a vacuum range
between 5” and 29” Hg.
5) The vacuum is created by a Mazzei venturi, model 1585X, which is installed in the
post filter recirculation loop driven by a 1 hp Pulsar pump. The venturi is installed on
the discharge side of the Pulsar pump creating a flow through the venturi, which
provides the suction on the discharge value evacuating the discharge tank. An
emergency shutoff valve shall ensure that water flow to the spray manifold is shut off
in the unlikely event that the discharge tank has not emptied properly.
6) The system will operate with an inlet water pressure of 27-30 psig (IV). The inlet
water is supplied from the 1 hp Pulsar pump.
7) The briquette tank shall have a capacity of two hundred (200) pounds (IV) of Pulsar
Plus dry chlorinator briquettes.
8) Pulsar IV - The chlorine output shall be controlled by a timer or an ORP controller.
The timer has twenty-one settings. One knob controls the off time which ranges from
18 seconds to 54 minutes and is called out from A (18 seconds) to G (54 minutes).
The on time is controlled by a second knob, which has 3 settings, ranging from 10 to
30 seconds, low being 20 seconds, normal being 10 seconds and high being 30
seconds. The timer will allow a minimum available chlorine (AvCl) output of 1
lb/day and will allow a maximum available chlorine (AvCi) output of 360 lbs/day.
9) The sanitization system shall be capable of functioning in temperature between 40°F.
and 130°F.
10)The sanitization system shall operate with Pulsar plus dry chlorinator briquettes having
65% minimum available chlorine with at 0.4 to 0.6% scale inhibitor (by weight).
11)The sanitization system shall be provided with a spare screen.
12)The sanitization system shall be capable of satisfactory performance if installed as per
the manufacturer’s recommendations (reference the Pulsar III/IV installation manual).
An authorized representative of the manufacturer shall be located within a reasonable
distance of the facility and shall be available to install and service the system as
required.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
13)The manufacturer shall warrant parts of the sanitization system to be free of defects in
workmanship and material for 2 years from date of installation.
14)The unit shall be provided with an illustrated installation, operating and maintenance
manual with drawings and detailed written descriptions of all phases of controller
function.
15)Final installation, start-up calibration, and instruction of operating personnel shall be
performed on-site by an authorized representative of the manufacturer.
16)Training sessions shall be video taped and included with the final O&M manuals.
B.
pH Buffering System (CO2)
1. Shop drawings complete with a piping diagram depicting the location in which the CO2 feeder
is to be connected to the system shall be provided and approved prior to installation.
Installation of the system shall be as specified in the manufacturer’s directions and no
exceptions shall be taken.
2. Bulk Storage
a. Provide a system for storing, regulating and feeding carbon dioxide for pH control. The
system shall consist of CO2 storage tank(s), a lockable fill box for bulk delivery, a pressure
reducing/regulating system, a feed and rate of flow adjustment control system, injection or
mass transfer system, and all valves, tubing, fittings and appurtenances required for a
complete and operable system. The system is to include the following components.
1) CO2 Storage Tanks
a) Provide two (2) 450 lb or 600 lb mass storage tank(s) meeting ASME requirements,
specifically designed and configured for use with CO2. The tank(s) shall be of an
insulated, vacuum-jacketed double wall construction with a rated service pressure of
at least 292 psig. The outer shell shall be stainless steel and given a 10 mil dry film
thickness epoxy coating, the inner shell shall be of stainless steel.
b) Each tank shall include shut off and pressure regulating valves, gauges for accurate
output pressure control, a 350 psig pressure relief valve, and shall be provided with a
dual pressure building/economizer regulator that includes a 7.5 amp, 120 VAC
heater extending into the tank and the liquid CO2.
c) Usage rate capacity shall have a range of 3.2 pounds per day to 20 pounds per hour.
Secure tank to building wall with a coped saddle and a 16 GA x 3” stainless steel
strap bolted to wall.
d) Fill tank with CO2 for initial testing and operation, and provide full tank(s) at the
time of Owner acceptance.
e) The tank(s) shall be as manufactured by Taylor-Wharton, MVE, or approved equal.
2) Remote Fill Box
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
a) Provide a remote fill station capable of filling the tank(s) at the rate of approximately
30 to 50 pounds per minute in a manner that does not require entry to the storage
room containing the CO2 tank(s). Length of tubing between remote fill box and bulk
storage tank shall not be more than 20’, unless otherwise noted. Each fill station
shall consist of a flush mounted (recessed) lockable fill box located at the exterior of
the building, as indicated, connected to the CO2 system. It shall include a quick
disconnect and automatic closure coupling. Box shall be 8" x 8" x 2” and
constructed of painted 16 gauge galvanized or stainless steel, or sized to module with
exterior masonry.
b) Tanks are to be connected to outside fill station(s), as indicated, with two lengths of
1/2 inch ODT copper for the purpose: one to transfer liquid to the tanks from a bulk
delivery vehicle, and the other from the relief valves to the outside of the building.
All copper tubing from remote fill box to storage tank shall be fitted with either
double ferrule swage fittings, or silver soldered fittings.
3) Dual Tank Switchover System (NOTE TO SPECIFIER: only if multiple bulk tanks are
daisy-chained)
a) Dual tank automatic switchover system with gauges. Strantrol CO2 -10, one (1)
required.
b) Dual tank manual switchover system with gauges.
required.
Strantrol CO2 -6, one (1)
3. Mass Transfer System.
a. Provide one mass transfer system, as described below, for each of the system to receive
CO2. Feed is to be totally diffused and made to go fully into solution without evidence of
CO2 bubbling at any point where water is open to atmosphere.
1) Tubing connection between bulk storage tank and mass transfer system shall be one of
two methods: pressure rated 3/8” poly/tygon tubing (in runs over 10’ enclosed PVC
conduit) or ½ OD copper double ferrule swage fittings, or silver soldered fittings; refer
manufacturer.
a) Provide one (1) system for the Spa; a wet stone diffuser designed for use with CO2,
sized to the pipe in which it is to be inserted and for the maximum anticipated rate of
CO2 flow. Provide with pipe saddle connector and all fittings and connectors
required for a complete and operable installation.
b) Provide one (1) system for the Competition Pool and Dive Pool; a pre-plumbed and
pre-wired, skid mounted, high efficiency CO2 feed and mass transfer system capable
of feeding from 0 to 170 SCFH of CO2. System to include a 1 HP stainless steel /
Noryl booster pump, motor starter, mass transfer venture style polyethylene injector,
12 to 15 gallon FRP contact chamber with interior diffusers, 120 VAC / 24 VAC
transformer, adjustable feed rate flow controller, 24 VAC solenoid valve, feed
indicator light, and all fittings, unions, valves, tubing, connectors and appurtenances
required for a complete and operable installation. Skid is to be of non-corrosive
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
materials and provided with drilled legs for bolting to the floor. Unit is to be Model
pH-MTS as manufactured by EKO3, CO2 – 2000 by Strantrol, or approved equal.
C.
Ultraviolet Dechloramination and Disinfection System
1. It is the intent of these specifications that the swimming pool water be routinely monitored
and treated by UV sterilization in the range of 220nm to 400nm to kill bacteria, viruses,
molds and their spores and to continuously remove chloramines. The concentration of free
chlorine residual shall at all times meet the requirements of the Health Department authority
having jurisdiction over the swimming pool.
2. The method of monitoring and treatment specified and shown on the drawings is intended as
the basis for receiving bids. It is not the intent of these specifications to limit competition.
The base proposal must be on providing equipment as specified; however, a bidder will at
his option offer a substitution. The bidder is cautioned that any substitution must meet the
quality and operational requirements of these specifications. Any proposed UV system
must have a UL listing on the complete system, and be listed under NSF Standard 50. Any
substitute system shall have Health Department approval for this project prior to being
offered.
3. The UV system offered under these specifications shall have been used for a minimum of
ten years in swimming pool applications and the bidder must supply a list of at least ten
satisfactory installations with contact names and telephone numbers.
a. Basis of design: UV system shall be manufactured by Hanovia or approved equal.
4. Equipment General Description
a. The UV System shall be a complete unit with all necessary controls. The system shall be
preassembled and controls packaged for ease of installation at the job site and shall
include:
1) the UV chamber with flow and output safety control;
2) a UV medium pressure arc tube modified to emit UV light from 220nm to 400nm;
3) an automatic, adjustable, electric motor-driven quartz sleeve cleaning system;
4) operational and power controls.
5) the ability to dose control the UV delivered to the pool water.
b. The system for the NAU Competition Pool shall be sized for the recirculation rate of
2,200 GPM with 12” return to pool pipe size and be a Hanovia Model#
PMD320G3/12AW.
c. The system for the NAU Dive Pool shall be sized for the recirculation rate of 1,600 GPM
with 10” return to pool pipe size and be a Hanovia Model# PMD320G3/10AW.
d. The system for the NAU Spa shall be sized for the recirculation rate of 106 GPM with 3”
return to pool pipe size and be a Hanovia Model# PMD152B1/3AW.
NAU Proj. #09.860.131
131100 - 42
SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Pool Type
Competition
Pool
Dive Pool
Spa
Center For Aquatics & Tennis
Design Development - September 13, 2013
Model
Number
PMD321
G3/12AW
PMD320
G3/10AW
Max Flow
(GPM)
Lamps
Power
(KW)
1,520-2,420
3
10.5
1,520-2,230*
3
10.5
0-206*
1
1.2
PMD152
B1/3AW
Voltage (V) with
Breaker Size**
480 (30 amp
breaker)
480 (30 amp
breaker)
110 (15 amp
breaker) / 208 (10
amp breaker)
* Not to exceed 10'/sec, Schedule 80 PVC
**All breakers to be 'D' curve type breaker
5. UV Chamber
a. The UV chamber shall be pressure rated for continuous operation at 150 psi, tested to
225 psi and constructed of type 316L stainless steel.
b. It shall be designed for an internal pressure drop not to exceed 2 psi at maximum flow.
c. The chamber shall incorporate:
1) a temperature sensor to shut off the UV arc tube when there is inadequate flow in the
chamber;
2) an UV intensity monitor which alarms when the UV arc tube output drops below the
dosing level required for proper operation. The monitor shall be of the wet probe type
wavelength specific to 240nm - 280nm with a 4-20mA output. It shall display actual
lamp intensity (mW/cm2) on the control cabinet door display.
3) a stainless steel terminal cover fastened to the chamber end plate, to which is affixed
the electrical conduit, to protect the lamps and electrical leads.
4) a design for laminar flow to provide maximum efficiency in the transfer of UV to the
water
5) Limit switches shall be located to position the wiper, and to prevent the wiper parking
over the active arc tube. The switches shall be magnetic type, and shall include visual
indication of the wiper position. The wiper mechanism shall be fail safe, and shall
shut the system down in the event of failure, as described below.
6) The chamber shall contain a quartz sleeve, which is sealed at both ends by a UV
shrouded O ring. The quartz must be annealed for durability and against breakage.
Systems that contain a quartz thimble shall not be permitted. The thimble is
inherently buoyant and poses a safety risk to operators during annual maintenance.
7) The wetter surfaces shall be chemically passivated and all welds ground to eliminate
any potential corrosion mechanisms. Crevices (as found behind a quartz thimble)
shall not be permitted under any circumstance.
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
8) A simple strainer to prevent any glass returning to the pool in the event of accidental
glass breakage of the quartz sleeve.
9) UV equipment shall be complete with calibrated UV sensors, which record the output
of all the UV lamps installed in a system.
6. Automatic Wiper System
a. For periodic cleaning of the quartz sleeves and the UV monitor probe, the chamber shall
be fitted with an automatic cleaning mechanism. It shall consist of a single SS yoke with
Teflon bosses and replaceable molded viton wiper rings which travel the full length of
the quartz sleeve twice per cleaning cycle. The frequency of the wiper cycle shall be
adjustable from 15 to 720 minutes and set for job conditions. The mechanism shall be
driven by a two-pole bi-directional electric motor and acme lead screw. Reed type limit
switches shall control the length of travel. The wiper mechanism wiper rings in the
"parked" position shall not be over the lamp, blocking the transfer of UV light, or
creating a "hot" spot on the arc tube.
7. Ultra Violet Lamp
a. The UV lamp shall be a high intensity, medium-pressure UV arc tube modified to emit a
continuous UV spectrum from 220nm to 400nm into the water. Full output must be
available from 0 to 200 degrees. The lamp shall be UL approved with one electrical lead
at each end.
b. Each lamp shall be individually numbered and the manufacturing process shall permit
full audit and traceability of assembly. In addition to an individual serial number, the
part number shall be displayed on the lamp.
8. UV System Control
a. The system control cabinet shall be epoxy coated steel, NEMA 12, fan cooled with
louvers and replaceable filters. The control system shall be de-energized when the
cabinet door(s) are open. All wiring shall be harnessed in DIN channels. The power
supply to the UV arc tubes shall be from a constant wattage transformer. The entire
system shall be UL listed and there shall be a decal clearing showing this listing
displayed in the cabinet. The control cabinet shall display via a back lit liquid-plasma
display the following information:
1) Power on
2) UV intensity (% and mW/cm2)
3) UV dose (mJ/cm2)
4) Flow rate in GPM
5) Arc tube ready indicator
6) Any alarm condition
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
7) Wiper status and alarm
8) Consumable spare parts list with part numbers
9) Local/remote operation switch, door mounted
10)
Data logging of UV dose, lamp hours, lamp intensity for regulatory audit.
b. The control panel shall contain an Earth Leakage detector, which shall provide fail-safe
protection for bathers and those working on the equipment within the pool environment.
This requirement is mandatory, as the voltages used within UV systems can pose risk of
death.
c. The control panel shall be UL LISTED, and in addition shall conform to EN 50081 and
EN 61000. The panel and all UV components shall be manufactured to ISO 9001-2000.
9. Optional Equipment
a. Power Switching - The UV system shall have power switching capability to increase or
decrease the power to the lamp as necessary to achieve the proper dose required by the
swimming pool. The power switching shall have four (4) power levels capable of
automatically adjusting between the four levels, increasing or decreasing, depending on
the quality of the pool water. NOTE: 50% turndown capability shall not be permitted as
an equal to power switching.
10. Instructions
a. The manufacturer (supplier) shall prepare complete drawings for the installation and
printed instructions for the operation of the UV system herein specified and shown on
the drawings. A qualified factory trained representative of the manufacturer shall install
this equipment, put it into operation and instruct the owner's representative in the
operation and maintenance of all such equipment.
2.7
WATER CHEMISTRY MONITORING AND CONTROL SYSTEMS
A.
The water chemistry control systems for the competition pool, dive pool, and spa shall provide
continuous monitoring and control of sanitizers, oxidizers, pH, ORP, free chlorine, total
chlorine, combined chlorine, temperature, system flow rate, total dissolved solids (TDS),
system pressures, strainer vacuum and water chemistry balance calculations. The controller
shall manage the recirculation pumps with a programmable Fireman Cycle feature, which
automatically turns off the Heater and UV systems prior to shutting off the recirculation pump.
All line-voltage wiring shall be performed in a separate NEMA 4X enclosure that precludes
access to the controller electronics. The control system shall also provide automatic control of
the filtration system including backwash operation. Installation of the system shall be per the
manufacturer’s specification and no exceptions shall be allowed. A factory trained/authorized
representative shall provide training to the Owner and the training shall be videotaped per
131100, Section 1.12 of the project contract documents. The specified controller, a BECSys7
manufactured by BECS Technology, Inc. shall be provided or Chemtrol by SB Control
Systems, AcuTrol by Pentair, ProMinent, or a technically equal system capable of providing
equal performance for all operating functions. (Three (3) Required).
NAU Proj. #09.860.131
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
B.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Certifications
1. The controller shall carry the following product certifications
a. NSF/ANSI Standard 50;
b. UL 61010-1
C.
Sensors
1. The controller shall come with the following sensors
a. pH - The controller shall provide a measurement of pH by utilizing a sensor with the
following characteristics:
1) 0 – 14 sensing range
2) ABS body with ½” NPT process connection
3) Minimum of 32 milliliters of inorganic electrolyte gel; organic electrolytes,
susceptible to breakdown in the presence of strong oxidants, shall not be considered
equal
4) A porous Teflon liquid junction to provide a stable, low impedance reference contact,
and to prevent fouling and clogging of the liquid junction
5) A silver/silver chloride (Ag/AgCl) reference element
6) A general purpose glass membrane pH sensing element
7) Operating temperature range of 0 - 80 degrees C
8) Operating pressure range of 0 - 100 psiG.
9) The controller shall continuously monitor, display and data log pH with 0.1 or 0.01
resolution (programmable).
b. ORP - The controller shall provide a measurement of ORP by utilizing a sensor with the
following characteristics:
1) -1000 to +1000mV sensing range
2) ABS body with ½” NPT process connection
3) Minimum of 32 milliliters of inorganic electrolyte gel; organic electrolytes,
susceptible to breakdown in the presence of strong oxidants, shall not be considered
equal
4) A porous Teflon liquid junction to provide a stable, low impedance reference contact,
and to prevent fouling and clogging of the liquid junction
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SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
5) A silver/silver chloride (Ag/AgCl) reference element
6) A solid platinum or solid gold ORP sensing element with a minimum of 1 cm2 surface
area; platinum-plated and gold-plated sensing elements, which are susceptible to
abrasives, shall not be considered equal
7) Operating temperature range of 0 - 80 degrees C
8) Operating pressure range of 0 - 100 psig
9) The controller shall continuously monitor, display and data log ORP with 1mV
resolution
c. Flow Sensor - The controller shall provide a measurement of pool circulation flow rate
and volume by utilizing a flow sensor with the following characteristics:
1) 0-8800 gpm (0-33265 liter/min) measuring range,
2) Magmeter flow sensor with a frequency output,
3) Dual O-ring seal,
4) Cable to meet length requirement for installation,
5) Saddle to meet return line size,
6) Flow volume: 999 trillion gallons, 1 gallon resolution; 999 trillion liters, 1 liter
resolution.
7) The controller shall continuously monitor, display and data log flow rate with 0.1
gpm resolution.
d. Temperature - The controller shall provide a measurement of water temperature by
utilizing a sensor with the following characteristics:
1) 32 – 212°F (0 – 100°C) sensing range;
2) 2 wire, 100Ω resistive temperature detector (RTD) with a 0.00385 Alpha.
3) The controller shall continuously monitor, display and data log temperature with 1°F
resolution.
e. Free Chlorine Sensor - The controller shall provide a measurement of free chlorine by
utilizing an amperometric sensor with the following characteristics:
1) 0.0 to 20.0 mg/l (ppm) measuring range with fully selectable scale,
2) 32° - 113°F operating temperature range,
3) A PVC body,
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
4) Replaceable PTFE membrane and electrolyte,
5) Gold cathode and silver/silver chloride anode.
6) The controller shall continuously monitor, display and data log free chlorine with 0.1
mg/l resolution.
f. 4-20mA Sensors (NOTE TO PROJECT MANAGER: The controller can read up to eight
(8) of the following optional 4-20mA output sensors.)
1) Filter Influent Pressure Transducers - The controller shall provide measurement of
filter influent pressure by utilizing a pressure transducer with the following
characteristics:
a) 0 to 100 psiG measuring range
b) < ± 2% span max @ 25° C which includes linearity, hysteresis and repeatability
c) 0.25% static error band and 1.5% typical thermal error band
d) Temperature compensated and fully calibrated
e) Stainless steel wetted components with plumbing connections of 1/4”
f) The controller shall continuously monitor, display and data log filter influent
pressure with 1 psiG resolution
2) Filter Effluent Pressure Transducers - The controller shall provide measurement of
filter effluent pressure by utilizing a pressure transducer with the following
characteristics:
a) 0 to 100 psiG measuring range
b) < ± 2% span max @ 25° C which includes linearity, hysteresis and repeatability
c) 0.25% static error band and 1.5% typical thermal error band
d) Temperature compensated and fully calibrated
e) Stainless steel wetted components with plumbing connections of 1/4”
f) The controller shall continuously monitor, display and data log filter effluent
pressure with 1 psiG resolution
3) Pump Effluent Pressure Transducer - The controller shall provide measurement of
pump effluent pressure by utilizing a pressure transducer with the following
characteristics:
a) 0 to 100 psiG measuring range
b) < ± 2% span max @ 25° C which includes linearity, hysteresis and repeatability
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Center For Aquatics & Tennis
Design Development - September 13, 2013
c) 0.25% static error band and 1.5% typical thermal error band
d) Temperature compensated and fully calibrated
e) Stainless steel wetted components with plumbing connections of 1/4”
f) The controller shall continuously monitor, display and data log pump effluent
pressure with 1 psiG resolution
4) Strainer Vacuum Transducer - The controller shall provide measurement of strainer
vacuum by utilizing a vacuum transducer with the following characteristics:
a) -15 to +85 psiG measuring range
b) < ± 2% span max @ 25° C which includes linearity, hysteresis and repeatability,
c) 0.25% static error band and 1.5% typical thermal error band,
d) Temperature compensated and fully calibrated,
e) Stainless steel wetted components with plumbing connections of 1/4”.
f) The controller shall continuously monitor, display and data log strainer vacuum
with 1 psiG resolution.
5) Total Chlorine Sensor (with Combined Chlorine Reading) - The controller shall
provide measurement of total chlorine utilizing a sensor with the following
characteristics:
a) 0.0 to 20.0 mg/l (ppm) measuring range,
b) 41° - 113°F operating temperature range,
c) Replaceable PTFE membrane and electrolyte,
d) Gold cathode.
e) The controller shall continuously monitor, display and data log total chlorine with
0.1 mg/l resolution. The controller shall also continuously monitor, display and
data log combined chlorine (from the total chlorine and free chlorine sensors) with
0.1 mg/l resolution.
D. User Interface
1. Standard Display - The standard display shall be a backlit transflective LCD with 14 line x
40 alpha/numeric graphical characters that will continuously display information related to
the following:
a. All installed sensor readings
b. Set points, with current control status
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Center For Aquatics & Tennis
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c. All active alarms, including time activated
d. Smart menus w/ integrated on-screen help
e. Contrast adjustment of the backlit LCD shall be provided through clearly marked keys on
the front-panel without the need for access to internal controller circuitry. After initial
adjustment, controller shall monitor internal temperature and automatically adjust
contrast to prevent LCD blackout in extreme ambient temperature conditions. Controllers
that do not include front-panel contrast adjustment and automatic temperature
compensation shall not be considered equal.
f. The standard user interface shall include single-touch access to Set Points, Relay Modes,
Calibrations, Backwash status and settings, Menu access, and Reset Fail/Safes. An
alphanumeric keypad shall be provided for ease of system configuration.
E.
Control Functions
1. Water Chemistry
a. pH Control: The controller shall continuously control pH. Chemical feed shall be
configurable for feed-up, feed-down, or dual feed and either on/off or time-based
proportional feed.
b. Sanitizer Control: The controller shall continuously control sanitizer based upon the
ORP reading, the amperometric sensor, or both with a bracketed control program.
Chemical feed shall be configurable for either on/off or time-based proportional feed.
c. Bracketed Sanitizer Control: With the amperometric ppm sensor, the controller shall
be configurable for bracketed sanitizer control; The bracketed control algorithm shall
allow either the ORP or ppm setpoint to be chosen as the primary control point, while
using other parameter to create a secondary boundary (min and max settings) that must
be maintained in addition to the primary control point.
d. Sanitizer Booster Feed: The controller shall have a sanitizer booster program with
selectable ORP and/or ppm set points with separate ending set points, allowing the
option of the booster sanitizer to control to a lower set point while the primary system
can recovers.
e. UV Control: A Fireman Cycle feature shall turn off (ramp down) the UV relay 0 to 60
minutes (settable) prior to backwash initiation or recirculation pump shutdown.
f. Combined Chlorine UV Control: The controller shall provide turndown control of a
UV system based upon combined chlorine set point; when combined chlorine is below
set point the UV system will be turned down to decrease energy consumption and
extend bulb life.
g. Superchlorination: The controller shall have a programmable superchlorination
function, based upon ORP or ppm superchlor setpoint, which is triggered manually.
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Northern Arizona University
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Center For Aquatics & Tennis
Design Development - September 13, 2013
h. Dechlorination: The controller shall have a programmable dechlorination function,
based upon ORP or ppm dechlor setpoint, which is triggered either manually or by the
completion of the superchlorination function.
i. LSI & RSI: The controller shall compute the Langelier Saturation Index and the
Ryznar Saturation Index based upon current inputs and the Ca Hardness and Alkalinity
entered by the operator.
2. Expanded
a. Flow Monitoring: The controller shall continuously monitor, display, and datalog system
flow, maintaining a total flow volume. A Low Flow Alarm shall be operator settable,
which can be programmed to disable chemical feeds. Controller shall also have a
Minimum Flow Rate setting to turn off heater whenever system flow is less than this
programmed minimum level.
b. Heater Control: The controller shall perform on/off control of a heater based upon an
operator settable temperature set point. A Fireman Cycle feature shall turn off the Heater
0 to 60 minutes (settable) prior to recirculation pump shutdown. The controller shall
immediately turn off the Heater when system flow is less than the heater Minimum Flow
Rate setting. The Heater control algorithm shall include an Energy Conservation mode,
with on/off set time and secondary temperature set point.
c. Sensor Wash: The controller shall include a programmable sensor wash with start and
end time, feed duration, and number of cycle to allow multiple feed cycles per day.
3. Energy Conservation
a. Alternate Setpoints: The controller shall have alternate Sanitizer, Heater, and Autofill
setpoints, based upon a 4 event 28 day timer.
b. Energy Conservation Mode: The controller shall have the capability to disable all
mechanical and chemical functions during programmed conservation cycle. The Energy
Conservation Mode shall include the ability to periodically monitor and satisfy all
operation requirements based upon a programmed time schedule.
4. Automatic Backwash
a. Backwash Initiation: The controller shall be user configurable to initiate backwash upon
any of the following conditions:
1) Time, based upon a 24 hour, 7 day programmable calendar
2) Pressure Differential, taken from either a pressure differential switch or an operator
settable low pressure differential setpoint based upon the differential between two
installed pressure transducers
3) Low System Flow, an operator settable low flow setpoint based upon the installed
system flow meter
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Center For Aquatics & Tennis
Design Development - September 13, 2013
4) Totalized filter water volume, an operator settable totalized filter water volume
setpoint based upon the total system flow maintained by the controller from the
installed system flow meter
5) High filter effluent turbidity, an operator settable turbidity set point based upon the
installed turbidity sensor
6) Manual, which only initiates backwash when manually activated by operator.
b. Normal Operation: The controller shall be capable of controlling the backwash operation
of up to 16 filters, with the following backwash features included as part of normal
programming.
1) Inhibit Period, Operator settable daily time period during which backwash is
prevented from being triggered.
2) Backwash Frequency Fail Safe: Prevents an automatically triggered backwash from
starting within this time period from the end of the previous backwash. Does not
prevent a Manual initiation of backwash.
3) Fireman Cycles: The controller shall provide 3 operator-settable independent Fireman
Cycle settings for the Heater and UV controls. The controller shall automatically
delay the start of the backwash operation until the Heater and UV controls have been
deactivated and the corresponding Fireman Cycles have expired.
4) Primary/Priority Valve Management: Primary/Priority valve control closes a
Primary/Priority valve during backwash of a filter to increase the flow through the
filter being backwashed.
5) Alternate Lead Filter; In multiple filter systems, the controller shall automatically
alternate the lead filter in each successive backwash cycle, in order to assure an
effective full backwash of all filters in the system.
6) Backwash duration: Operator settable length of time to backwash each filter.
7) Dwell Time: Operator settable length of time to delay after each filter is
backwashed.
c. Advanced Backwash Optimization: The controller shall be capable of the following
advanced features as part of the normal backwash programming:
1) Backwash accessory: Turns on an additional relay before, during, and/or after
backwash operations based upon operator settable parameters; useful for sites
where application of a dechlorination agent to backwash water (holding tank) is
required.
2) Water Saving (Turbidity): The controller shall be capable of monitoring backwash
effluent turbidity and ending a filter backwash early upon reaching a desired
turbidity set point.
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Center For Aquatics & Tennis
Design Development - September 13, 2013
3) Filter Isolation: During backwash suspension due to full backwash holding tank,
allows suspended filter to be isolated from the system rather than being returned to
filter mode to prevent the filter bed from recompacting, making the resumed
backwash rapidly effective. Requires properly equipped filters.
F.
Main Recirculation Pump
1. On/Off Control with Relay
a. Controller shall provide the capability to interface to and control a recirculation pump
with a programmable relay. The controller shall provide 3 operator-settable independent
Fireman Cycle settings and relays for the Heater and UV controls. The controller shall
include the following capabilities, available as appropriate based upon installed sensors
and implemented features:
1) Fireman Cycle: Upon the following events, the controller shall automatically delay
recirculation pump shutdown until the Heater and UV controls have been deactivated
and the corresponding Fireman Cycles have expired:
a) Backwash Operations
b) Energy Conservation mode (24 hr., 7 day function)
c) Manual off (per Operator)
2) Immediate: Upon the following events, the controller shall immediately turn off the
recirculation pump (and Heater and UV controls), without first satisfying Fireman
Cycle timing requirements:
a) Surge Tank Level Low Alarm: Turn off pump immediately (surge tank is almost
empty)
b) Strainer Vacuum High Alarm: Turn off pump immediately (possible entrapment)
c) Emergency shutdown, triggered by front-panel Emergency Off: Turn off pump
immediately (per Operator)
2. Total Dynamic Head (TDH)
a. Controller shall provide the capability to continuously monitor the Total Dynamic Head
(TDH) of the main recirculation pump, directly calculated by the controller from
recirculation pump influent vacuum and filter influent pressure transducers. TDH shall
be displayed on the user interface and recorded in data logs, with user-programmable
High and Low TDH Alarm settings.
3. VFD Interface with 4-20mA signal
a. Controller shall provide the capability to interface to and control a recirculation pump
equipped with a Variable Frequency Drive (VFD) through a 4-20mA signal. The
controller programming shall allow the operator to manage the VFD entirely from the
water chemistry controller, by providing the following capabilities:
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Flagstaff, AZ
Center For Aquatics & Tennis
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1) Programmable setpoint specified as either flow rate, effluent filter pressure, or fixed
setting,
2) Four programmable operator-triggered alternate profiles (“Manual Turndowns”),
3) Four programmable scheduled alternate profiles (“Scheduled Turndowns”),
4) Override setting for backwash,
5) Ramp up and ramp down settings,
6) Minimum output setting.
7) Remote access to current VFD status and all VFD parameters shall be provided
through the BECSys for Windows PC software provided with controller. The name of
each alternate profile shall be changeable by the operator, so that VFD menus and
data log entries are intuitive and recognizable by the users of the system.
8) Systems that do not provide both local and remote management of the VFD through
the water chemistry controller shall not be considered equal.
G. Control Outputs
1. Relay Outputs
a. Solid-State Relays
1) The controller shall come with a total of 4 integral line or dry contact 5A solid-state
relay outputs capable of switching 3A under all normal operating conditions,
accounting for the effects of the temperature gradient inside the NEMA 4X enclosure.
Systems that utilize relays that are not de-rated must submit an engineering evaluation
justifying the use of relays at their full, optimal-condition capacity. All solid-state
relays shall have a provision for an electrical interlock with the circulation pump
motor starter.
2. Mechanical Relays
a. The controller shall come with a total of 5 mechanical relays:
1) 1 integral 8A dry contact mechanical relay, and
2) 4 integral 3A dry contact or line powered mechanical relays.
3) Since mechanical relays have the inherent risk of failing in the closed (active)
position, as a safety measure the controller shall preclude the ability to assign any of
the integral mechanical relays to chemical feed functions. Systems that do not
preclude mechanical relays from being configured for chemical feeds shall not be
considered equal. All mechanical relays shall have a provision for an electrical
interlock with the circulation pump motor starter.
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Northern Arizona University
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Center For Aquatics & Tennis
Design Development - September 13, 2013
3. Solid-State Relay Expansion Modules
a. Each Solid-State Relay Expansion Module provides 5 integral 5A solid state dry contact
or line powered relays capable of switching 3A under all normal operating conditions.
Systems that utilize relays that are not de-rated must submit an engineering evaluation
justifying the use of relays at their full, optimal-condition capacity. All solid-state relays
shall have a provision for an electrical interlock with the circulation pump motor starter.
4. Mechanical Relay Expansion Modules
a. Each Mechanical Relay Expansion Module provides 5 integral mechanical relays:
1) 1 integral 8A dry contact mechanical relay, and
2) 4 integral 3A dry contact or line powered mechanical relays.
3) Since mechanical relays have the inherent risk of failing in the closed (active)
position, as a safety measure the controller shall preclude the ability to assign any of
the integral mechanical relays to chemical feed functions. Systems that do not
preclude mechanical relays from being configured for chemical feeds shall not be
considered equal. All mechanical relays shall have a provision for an electrical
interlock with the circulation pump motor starter.
5. 4-20mA Outputs
a. The controller shall come with eight separately isolated 4-20mA output signals with a
load capacity of 440Ω per output channel. Each output signal shall be independently
configurable for either of the following functions:
1) Any enabled input, scaled between two operator-defined end points,
2) VFD control of recirculation pump.
H. Safety Features
1. Manual-On limit
a. The controller shall have built-in limits to the amount of time any relay control output
may be forced on (i.e. in “Manual On” mode). This is an important safety feature to
prevent control outputs from inadvertently being left forced on after service or
diagnostics.
2. High/Low Alarm Settings & Control Lockouts
a. The controller shall have programmable high and low alarm settings for pH, ORP, PPM,
temperature, low flow & no flow and chemical overfeed, turbidity, pressure & vacuum,
surge tank levels, chemical inventory. The controller shall have a programmable lockout
of sanitizer feed upon pH high or low alarm.
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Northern Arizona University
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Center For Aquatics & Tennis
Design Development - September 13, 2013
3. No Flow Alarm & Flow Restored Delay
a. The controller shall activate a No Flow alarm when the dedicated sample stream flow
switch indicates there is insufficient flow through the sample stream. This No Flow
alarm shall lockout all chemical feed control operations. The controller shall include a
Flow Restored Delay, which shall extend the No Flow lockout user-programmable
amount of time after the No Flow alarm ends (i.e. flow is restored). This feature is
necessary to assure that the system has valid, stable sensor readings of circulating water
prior to making chemical feed control decisions.
4. Feed Limit Alarms
a. The controller shall trigger a FailSafe alarm if a chemical feed relay remains on longer
than the programmable Feed Limit Timer. Chemical feeds shall automatically be
disabled if the corresponding reading goes into a FailSafe alarm condition.
5. Emergency Off
a. The controller shall have a dedicated Emergency Off button on the front panel of the
system, which immediately halts all chemical feeds and control outputs when pressed.
This feature shall be password protectable, which shall require entry of one of the
Security passwords.
6. Safety shield
a. The controller shall include a safety shield or other mechanism for allowing fuse
replacement without access to high voltage circuitry or wiring.
I.
Security
1. The controller shall have three security password levels: six for operators, two for managers
and one for the distributor providing for a history of access identified by the user.
J.
Data Logging
1. The controller shall have 512K battery backed-up RAM for input level recording and
events. All input level shall be recorded for 10 to 56 days depending on sample rate (2 to 10
minutes).
2. The controller shall record and maintain the latest 1100 events over a maximum of 14 days
recording all alarms, parameter changes, user logins, and operational cycles related to all
control features.
K. Local Alarms Indicators
1. The controller shall signal all alarm conditions with the following indicators:
a. A bright red flashing LED on the front of the controller,
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b. Activation of a master alarm signal provided as a dry contact relay enabling the use of 0240 VAC alarms, and
c. Each active alarm listed on the LCD display along with time activated.
L.
Remote Communication, Access & Alarm Notification
1. Ethernet
a. The controller shall come with a standard, integral 100BaseT Ethernet connection. The
controller shall be capable of providing Remote Access via PC with Ethernet
connection and Alarm Notification via email or text message via an Ethernet
connection to the Internet.
2. Remote Access
a. The controller manufacturer shall provide BECSys for Windows graphical remote
operation software, for interactive connection to the controller from a PC. Remote
operation software shall be Vista-compatible, and have all of the following operational
modes:
1) Site Data Base – for organizing and accessing multiple controllers on site, or at
multiple sites.
2) Graphical Operator’s Console – to display current readings, setpoints, alarm points
and control status in an easy-to-read graphical mode.
3) Data Log Graphing – to review data logs with time-synchronized event data; data log
traces shall be configurable, with color and line style selectable by operator.
4) Full Menu Tree – All system parameters accessible through a full menu tree interface.
5) Auto-Polling – to allow automatic download of data logs from all controllers in site
database.
3. Alarm Notification
a. The controller shall be capable of providing alarm notification to 8 different recipients.
Each recipient shall be individually configurable to receive alarm notification by one of
the following methods.
1) Email: Notification message shall include system type, serial number, location,
system ID, and all active alarm including the date and time each alarm was triggered.
2) Text Message: Notification message shall include system type, serial number,
location, system ID, and all active alarm including the date and time each alarm was
triggered.
3) Fax: Notification message shall include system type, serial number, location, system
ID, and all active alarm including the date and time each alarm was triggered.
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4) Numeric Pager: Notification message shall include callback number. Controller shall
acknowledge pager notification when callback is received, and not notify subsequent
recipients programmed for pager notification.
4. The controller shall come with a standard, integral 100BaseT Ethernet connection that
supports a MODBUS TCP/IP connection to 3rd party applications such as EMS, BMS, BAC
and SCADA systems. The MODBUS TCP/IP connection shall support access to Inputs
(current readings), System Information, Set Points, Alarm Points, Control Status and Alarms.
Set Points and Alarm Points shall be modifiable from the 3rd party application via the
MODBUS TCP/IP interface.
5. The controller shall support an MS/TP (RS485) or TCP/IP (Ethernet) BACnet connection to
3rd party applications such as EMS, BMS, BAC and SCADA systems. The BACnet
connection shall support access to Inputs (current readings), System Information, Set Points,
Alarm Points, Control Status and Alarms. Set Points and Alarm Points shall be modifiable
from the 3rd party application via the BACnet interface.
M. Enclosures
1. The controller shall be housed in a NEMA 4X polycarbonate enclosure.
2. Field wiring enclosure - All high voltage field wiring shall be through a separate NEMA 4X
enclosure that precludes access to controller electronics. All high voltage connections shall
be clearly identified and a field wiring diagram shall be provided with the controller for
installer reference. All controller high-voltage relay assignment parameters shall be
programmed at the factory prior to delivery to installation location.
N. Flow Cell
1. PVC flow cell
a. The flow cell shall have a PVC body with two ½“ NPT ports for pH and ORP sensors,
two ¼“NPT ports for temperature sensor and sensor wash acid injection, and a clear
acrylic front viewing window. The flowcell design shall provide precise sample flow rate
and water velocity regulation past the probes. The flowcell shall come provided with
PVC ½” isolation ball valves, PVC ¼” wet test valve and standard reed or optional
rotary flow switch.
b. Each flow cell shall be equipped with a pressure-sensing device. The pressure sensor
shall consist of a compound pressure/vacuum gauge manufactured in stainless steel, 2 ½”
diameter, liquid filled with an operating pressure range of 0 to 60 psig and vacuum of 0
to –30 in./ Hg.
O. Start-up and Manuals
1. The control system shall be provided with on-site start-up, on-site operator training, and 1
year on-site warranty service performed by a representative trained and authorized by the
controller manufacturer.
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2. Manufacturer shall supply an Operation and Maintenance Manual describing features,
operating instructions, maintenance procedures and replacement parts.
2.8
FLOW METERS
A.
Flow Meter
1. Flow meters (3 required) shall be installed according to the manufacturer in the filtered water
return lines to each of the pools. Flow sensor shall be the GF Signet 2551 insertion magmeter.
Provide the coaxial cable from the sensor to the display/transmitter. Flow meter accuracy
shall be +/- 2% of reading. The flow instrument shall have a LCD for simultaneous display of
four-digit flow rate and eight-digit totalizer. Display/Transmitter capability will be part of
chemical controller function or as separate Signet GF Signet 9900 display/transmitter. Signet
GF Signet 9900 display/transmitter shall be powered by 24VDC and provide a 4-20mA output.
2. Backwash piping flow meter (3 required) shall be a pilot, impact ball, variable area type with
one piece, impact resistant machined acrylic plastic body. GPM scale to be permanently
etched or imprinted on the meter. Flow rate indicator to be of stainless steel material. Scale
range to be appropriate for specific flow rate. Pipe size to accommodate backwash rate.
Manufacturer shall be BLUE-WHITE or approved equal
B.
Refill Flow Meter
1. Refill flow meter (3 required) shall be installed on dilution piping to backwash tank. Flow
meter shall be one piece meter body of injected molded polysulfone adapters, viton o-ring
seals, and 316L stainless steel floats and float guide, impact resistant machined acrylic plastic
body. GPM scale to be permanently etched or imprinted on the meter. Flow rate indicator to
be of stainless steel material. Scale range to be appropriate for specific flow rate.
Manufacturer shall be BLUE-WHITE or approved equal Model F-45750LHN-12, 3/4” M/NPT
@ 0.4 to 10.0 GPM.
2.9
WATER LEVEL CONTROLLERS
A. In Surge Tank Water Level Controller (Competition Pool and Dive Pool)
1. Provide a water level sensing and control system for each of the Dive Pool and Competition
Pool that will monitor the water level in the surge tank and automatically activate the auto
water make-up control valve. For sensing water level and activating make-up water control
valve for each pool, use Series ELC-810 Controller housed in a watertight NEMA 4X UL94
5V UL flammability rated polycarbonate enclosure to meet IP66 and NEMA 4, 4X, 12 and 13
ratings. The Controller shall utilize two sensor(s) to control water level. ELC-810 series shall
have a menu-driven LCD display screen and utilize a five-switch user interface for navigation
through the menu. The menu shall allow changing the following settings: delay to shutoff,
alternate sensor option, maximum time on, manual override, delay to normal, type of sensor,
high level option, flow sensor active, and sounder with alarm. All menu settings shall be
capable of password protection. The Controller shall be capable of displaying the following
data: last fill time, last drain time, last alarm. The Controller shall be capable of determining
the following: maximum time on exceeded, over current to solenoid valve, no valve/valve
wiring problem, and sensor not working properly. The Controller shall have a low voltage
interlock with auto water make-up solenoid valve, shall provide adjustable time delay for
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increasing level and manual override; and shall require 115 VAC, 1 phase, 60 Hz power.
Manufactured by AquatiControl Technology, Model ELC-810-SS/DS-ST-XXX (Contractor to
coordinate the specific length(s) of cable required for each controller prior to ordering). Refer
to drawings for additional information. Provided and installed by CONTRACTOR and
connected by electrical.
2. Provide a solenoid valve for high level sensor, normally opened, stainless steel fitted, bronze
body, 24 VAC slow closing type. Size to pipe. Interlock with automatic water level control
system. Refer to the Drawings for additional information. Such as ASCO, or approved equal.
3. Provide a proximity switch sensor that shall be sensitive to within +/- 1/8” (4mm) of nominal
water level. Supply voltage to sensor shall be 12V to 24V DC from Controller. Current
consumption shall be < or = 15mA. Response frequency shall be 100Hz. Maximum control
output shall be 200mA. Sensor operating temperature shall be -25 Deg. C to 70 Deg. C.
Operating humidity shall range from 35% RH to 95% RH. Sensor shall be mounted in a 1”
SCH80 PVC pipe (length to be determined by depth of surge tank).
Sensing pipe to be
mounted to surge tank wall with composite/non-metallic hangers and stainless steel hardware.
Sensing pipe shall be capable of being submerged under water safely. Refer to drawings for
additional information.
4. Wiring from the sensor to the Controller shall be provided by the CONTRACTOR and shall be
connected to the terminal points mounted within a corrosion-resistant, nonmetallic NEMA 4X
enclosure. All wiring connections shall be made through the bottom of the enclosure. The
enclosure size shall be no less than 8” wide x 5” high x 4”deep. The access door shall be the
entire front face panel of the enclosure. Confirm location in field.
5. Major components shall be plugged in using WAGO terminal blocks for ease of installation
and replacement. Unit shall be designed to activate a 24-volt AC solenoid valve.
6. Provide a make-up water solenoid valve, normally closed, stainless steel fitted, bronze body,
24 VAC slow closing type. Size to pipe. Interlock with automatic water level control system.
Refer to the Drawings for additional information. Such as ASCO, or approved equal.
7. Discharge of make-up water shall be into a fill standpipe and piping to the Dive Pool /
Competition Pool or- connected to the filter pump suction line upstream of the isolation valve
(provide approved backflow preventer). Refer to the Drawings for additional information.
B.
In Deck Water Level Controller (Spa)
1. Provide a water level sensing and control system for the spa that will monitor the water level in
a well located in the deck at the side of the pool and which will automatically activate the auto
water make-up control valve. For sensing water level and activating make-up water control
valve for each pool, use Series ELC-810 Controller housed in a watertight NEMA 4X UL94
5V UL flammability rated polycarbonate enclosure to meet IP66 and NEMA 4, 4X, 12 and 13
ratings. The Controller shall utilize two sensor(s) to control water level. ELC-810 series shall
have a menu- driven LCD display screen and utilize a five-switch user interface for navigation
through the menu. The menu shall allow changing the following settings: delay to shutoff,
alternate sensor option, maximum time on, manual override, delay to normal, type of sensor,
high level option, flow sensor active, and sounder with alarm. All menu settings shall be
capable of password protection. The Controller shall be capable of displaying the following
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data: last fill time, last drain time, last alarm. The Controller shall be capable of determining
the following: maximum time on exceeded, over current to solenoid valve, no valve/valve
wiring problem, and sensor not working properly. The Controller shall interlock with auto
water make-up solenoid valve and shall provide adjustable time delay for increasing level and
manual override; 115 VAC, 1 phase, 60 Hz. Manufactured by AquatiControl Technology,
Model ELC-810-SS/DS-DW-XXX (Contractor to coordinate the specific length(s), “XXX,” of
cable required for each controller prior to ordering). Refer to drawings for additional
information. Provided and installed by CONTRACTOR and connected by electrical.
2. Provide a solenoid valve for high level sensor, normally opened, stainless steel fitted, bronze
body, 24 VAC slow closing type. Size to pipe. Interlock with automatic water level control
system. Refer to the Drawings for additional information. Such as ASCO, or approved equal.
3. Provide a proximity switch sensor that shall be sensitive to within +/- 1/8” (4mm) of nominal
water level. Supply voltage to sensor shall be 12V to 24V DC from Controller. Current
consumption shall be < or = 15mA. Response frequency shall be 100Hz. Maximum control
output shall be 200mA. Sensor operating temperature shall be -25 Deg. C to 70 Deg. C.
Operating humidity shall range from 35% RH to 95% RH. Sensor shall be housed within a
fiberglass deck well. The deck well shall consist of two compartments – a wet well connected
to the pool via a 1½” static line, and the dry well to consist of a rigid plastic enclosure which
houses the sensor and attaches to a ½” static line connected to the wet side. The dry side shall
incorporate a 1½” overflow drain and a ¾” female threaded connection to allow connection of
sensor cable conduit. Installation of Deck Well at pool side by CONTRACTOR. Coordinate
for the provision of conduit from deck well to Controller by Electrical and plug drain from
deck well to waste.
4. Wiring from the sensor to the Controller shall be provided by the CONTRACTOR and shall be
connected to the terminal points mounted within a corrosion-resistant, nonmetallic NEMA 4X
enclosure. All wiring connections shall be made through the bottom of the enclosure. The
enclosure size shall be no less than 8” wide x 5” high x 4” deep. The access door shall be the
entire front face panel of the enclosure. Confirm location of Controller in Field.
5. Major components shall be plugged in using WAGO terminal blocks for ease of installation
and replacement. Unit shall be designed to activate a 24-volt AC solenoid valve.
6. Provide a make-up water solenoid valve, normally closed, stainless steel fitted, bronze body,
24 VAC slow closing type. Size to pipe. Interlock with automatic water level control system.
Refer to the Drawings for additional information. Such as ASCO, or approved equal.
7. Discharge of make-up water shall be into a fill standpipe and piping to the spa. Refer to the
Drawings for additional information.
2.10
INSERTS AND ANCHOR SOCKETS
A.
Sockets and anchors shall be provided as stainless steel or cast bronze for swimming pool
accessories. The CONTRACTOR shall confirm compatibility of deck equipment and deck
anchors with the deck equipment manufacturer. All anchors or sockets shall be provided with
flush closure caps and escutcheons with set screws where indicated. Escutcheons shall be of the
keyhole or oblong shape, similar to the casted, electro-polished stainless steel escutcheon with set
screw by Paragon #28303SS, or approved equal.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
1. Anchor sockets for all railings and grab rails shall be of the wedge type, cast bronze, 4 inches
in depth and made to receive 1.50 inch OD tubing as manufactured by Paragon #28105, or
approved equal. The wedge shall be cast bronze, incorporate a stainless steel tightening bolt
and flat washer, and be designed as the sacrificial element to the anchor system. All metallic
components shall be passivated, in compliance with ASTM A967-99, incorporating organic
acid passivation techniques for maximum corrosion resistance.
2. Anchor sockets for all stanchions and water polo goals shall be of cast bronze, sized to receive
a full 6 inches penetration of 1.900 inch OD tubing as manufactured by Paragon Aquatics
Catalog No. 38201TC, Spectrum Products No. 23626, or approved equal. Each anchor socket
is to be provided with a flush threaded, vandal proof closure cap Paragon Aquatics Catalog No.
38201TC or Spectrum Products No. 23628, and a grounding lug with screw. Provide Paragon
Aquatics catalog no. 38303, Spectrum Products catalog no. 23630, or approved equal spanner
wrenches for removing the closure cap.
3. Cup anchors for racing lane lines, water polo tether and boundary lines etc. shall be
incorporated into the perimeter overflow system. Cup anchors shall be chrome-plated cast
bronze with chrome-plated bronze threaded eyebolts. The heavy-duty cup anchors shall have a
3-3/8” diameter with a ½”-13 eyebolt and a 3-3/16” deep anchor body. Cup anchors shall be
Keifer Commercial cup anchor, catalog no. 700108, or approved equal.
4. Anchors sockets for single post starting platforms located on the deck level, rollout, parapet,
and bulkhead shall be designed to prevent rocking. A stainless steel cap shall be provided to
flush mount on the deck when platform is removed. Anchor socket shall be cast T304 stainless
steel with wedge assembly consisting of a bronze wedge and T304 stainless steel hardware.
Anchors for starting platforms shall be by the starting block manufacturer - Quickset Dualwedge anchor by KDI Paragon, SR Smith Rock Solid anchor, Record Breaker anchor by
Spectrum, or Riptide anchor by Kiefer.
5. Anchor assembly for pool lift shall be a pair of threaded bronze anchor sockets mounted on a
jig. The anchor assembly shall include a grounding lug for proper bonding. Install in
accordance with manufacturer's instructions and provide the concrete foundation reinforcing
required to properly anchor and support the unit for its intended use. Manufacturer shall
provide an anchor that has a completely flush cover or flush plug for times when the lift is not
in use.
6. Anchors for the diving board stands shall be all bronze threaded castings for respective 5/8”
threaded anchor bolts. The stand shall be designed for mounting with the use of Durafirm
catalog number 70-231-900 bronze deck anchors.
7. Anchors for bulkhead locations shall be provided by the bulkhead manufacturer and installed
into the gutter system by the CONTRACTOR where shown on drawings.
2.11
DECK EQUIPMENT
A.
Grab rails shall be provided as required in the quantities and to the dimensions as shown on the
drawings. Grab rails shall be fabricated of one continuous length of polished and buffed tubing.
The tubing shall be ASTM-A-554 grade 316L stainless steel, 1.50 inch OD x .120 inch minimum
wall thickness, polished and buffed to 320 grit finish and shall be passivated, in compliance with
ASTM A967-99, incorporating organic acid passivation techniques for maximum corrosion
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
resistance. All bends shall be smooth and free of wrinkles. Grab rails shall be pretzel bend style
with dimensions as indicated in the plans and as manufactured by Spectrum, SR Smith, Paragon,
or approved equal.
B.
Entry rails shall be provided as shown on the drawings, fabricated from one continuous piece of
polished and buffed ASTM-A-554 grade 316L stainless steel, 1.500 inch OD x .120 inch wall
thickness, polished and buffed to 320 grit finish and shall be passivated for maximum corrosion
resistance. Bends shall be smooth and wrinkle free. Custom rails shall be as manufactured by
Spectrum Products, or approved equal. Custom rail submittal drawings shall be complete with
details of custom fabrication and installation information.
C.
Railings for the diving tower and springboard pedestals shall be provided as detailed on the
architectural drawings. Rails shall be custom fabricated of one continuous length of tubing
wherever possible. The tubing shall be type 316L stainless steel, 1.500 inch OD x .120 inch wall
thickness polished and buffed to 320 grit finish with slip resistant finish.
D.
Stanchion posts (backstroke and false start) shall be provided as required and in the quantities
shown on the drawings. The posts shall be a straight length of type 316L stainless steel tubing,
1.900 in. OD x .145 in. wall thickness x 8 ft. 0 in. overall length, polished and buffed to 320 grit
finish. Stanchions shall be capped at one end with a closure plug containing a U-shaped hook and
fitted with a stainless steel eyebolt attached to an adjustable nickel plated bronze sliding collar.
Stanchion shall be as manufactured by Paragon Aquatics, catalog no. 38106, or Spectrum
Products catalog no. 23614 with Paragon Aquatics catalog no. 38301 or Spectrum Products
catalog no. 23625, sliding collar, with eyebolt or approved equal.
E.
Starting Platforms
1. Single post starting platforms for the rollout gutter and bulkhead (15 required, includes 1
spare) shall have number plates on both sides numbered 1 through 10, practice blocks shall not
be numbered. Spare block shall not be numbered. Platform block height shall be 29-1/2” inch
above water level. The platform top (24” wide x 32” deep) and intermediate side step (8” x
12”) shall be constructed of UV inhibited high density polypropylene. Contractor shall
confirm step is on correct side (right or left) according to plans. The surface shall have a nonskid dual cross-grooved sand textured finish. The top shall be permanently positioned at a 10°
tilt towards the pool. Frames to be 2.5 square inch x .125 inch wall thickness 304 stainless
steel tubing with a powder coated finish. Architect/Owner to select colors. Verify height of
platform above water before ordering. Backstroke bar shall be 1” diameter and allow both
horizontal and vertical grab positions. Blocks shall have raised side grip handles and
adjustable back plate. Platforms shall be custom blocks as detailed on the plans similar to the
Paragon Track Start Quickset, Legacy Launch starting platform by SR Smith, Keifer Riptide,
Spectrum Fusion, or approved equal. Each starting platform shall have two labels affixed
stating "Warning-Execute Shallow Racing Dive - Impact with Pool Bottom can Cause
Permanent Injury."
2. Single post starting platforms for the parapet gutter (11 required, includes 1 spare) shall have
number plates on both sides numbered 1 through 10. Spare block shall not be numbered.
Platform block height shall be 29-1/2” inch above water level. The platform top (24” wide x
32” deep) and intermediate side step (8” x 12”) shall be constructed of UV inhibited high
density polypropylene. Contractor shall confirm step is on correct side (right or left) according
to plans. The surface shall have a non-skid dual cross-grooved sand textured finish. The top
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
shall be permanently positioned at a 10° tilt towards the pool. Frames to be 2.5 square inch x
.125 inch wall thickness 304 stainless steel tubing with a powder coated finish.
Architect/Owner to select colors. Verify height of platform above water before ordering.
Backstroke bar shall be 1” diameter and allow both horizontal and vertical grab positions.
Blocks shall have raised side grip handles and adjustable back plate. Platforms shall be
custom blocks as detailed on the plans similar to the Paragon Track Start Quickset, Legacy
Launch starting platform by SR Smith, Keifer Riptide, Spectrum Fusion, or approved equal.
Each starting platform shall have two labels affixed stating "Warning-Execute Shallow Racing
Dive - Impact with Pool Bottom can Cause Permanent Injury."
3. Starting platform safety covers (24 required) are designed to keep unwanted users off stating
platforms. The cover is made of 1/16” thick tough, lightweight plastic with a UV stabilizer
and fits 24” x 32” platform tops. The conical shape and safety orange color act as a deterrent
of stating platform use. Each cover is provided with a bungee cord for securing cover platform
top.
F.
Water Polo Goals
1. Goals shall be constructed to meet all official regulations of FINA, NCAA, NFSHSA, and
USWP. Where a conflict exists between these specifications and the official regulations of
FINA, FINA shall govern. Special finishes and backings shall comply with the regulations.
Deck-mounted water polo goals shall be adjustable vertically to provide the regulation cross
bar elevation in shallow or deep water.
2. Floating water polo goal (8 required) shall consist of a front frame made of non-corrodible 3
inch x 2 inch aluminum with rounded edges and supported by 1 ¼” non-corrodible polished
pipe. The flotation unit shall be vacuum formed ABS plastic supported by high-density
ethafoam. The floating goal shall be as manufactured by Anti-Wave Club, Anti-Wave
Odyssey, Kiefer KAP204, Kiefer WPG1402, or approved equal. The goal shall be provided
with mesh netting securely fastened to the cage. Goal shall incorporate attachments for wave
quelling cable floats, hooks and take-up ratchet for securing to rope anchors.
G.
Lifeguard Chairs
1. Lifeguard chairs (8 required) shall be movable and provided with a molded plastic seat 6 feet
above the deck. The seat shall be capable of a 360-degree swivel and shall be supported on a
stainless steel tube structure. Platform shall be laminated wood coated with fiberglass and
polyester resin, and have a non-skid surface. Access to the platform shall be by means of a
sloping front ladder, 26” wide. Ladder steps shall be injection molded ABS, UV stabilized,
26” long x 5” wide with a raised non- skid tread. The framework of the chair shall be rigidly
bolted. Ladder and guard rails shall be manufactured of stainless steel tube, 1.90 inch OD x
0.065 inch wall thickness, type 316L polished and buffed to a 320 grit finish. 7” diameter
wheels shall be attached to the bottom of the front leg and means of attaching a rescue tube
and umbrella shall be provided. Lifeguard chairs shall be Paragon Aquatics catalog no. 20302,
or approved equal.
H.
Diving Stands
1. Diving stands for the one-meter and three-meter springboards shall be installed as shown on
the plans. The diving board stand shall consist of heavy aluminum castings dipped in erudite
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
chromic acid solution, followed by a 20 mil coat of baked epoxy. Finish must be touched up in
the field if damaged in shipping or assembly. The roller tube and tracks shall be heat-treated
extruded aluminum processed by Alcoa Duranodic hard anodizing process. The bearings for
the roller tube and slide shall be nylon with grease fittings, adjustable and field replaceable.
The diving board anchor hinges and pins shall be heat treated aluminum forgings with a design
tensile strength of 35,000 psi and shall receive Alcoa Duranodic hard anodizing. Hinges shall
be designed to allow 180-deg. rotation of the diving board to the rear of the stand. Hinges
shall be mounted on a transverse casting machined to allow 7 leveling positions in one-inch
increments. The diving board anchor bolts shall be 5/8-inch diameter by 3-1/2 inch long
silicon bronze. The diving stand shall be supplied with top and intermediate guard rails on two
sides. The diving stand guard rails shall be stainless steel tubing firmly attached to the guard
rail supports with stainless steel band fasteners. The rails shall extend to the edge of the
swimming pool and the rail ends shall be fitted with rubber safety tips. Fulcrum shall have an
adjusting wheel at one end that can be turned by hand or foot. Diving stands to be as
manufactured by Duraflex International Corp.
a. Provide anchors only for practice one meter stands (2 required) shall be Durafirm catalog
#70-231-400 and included with eight (8) bronze deck anchors, Durafirm catalog #70231-905.
b. Provide anchors only for practice three meter stands (2 required) shall be Durafirm
catalog #70-231-300 and included with eight (8) bronze deck anchors, Durafirm catalog
#70-231-905.
c. Short stand (4 required) shall be Durafirm catalog #70-231-524 and included with six (6)
bronze deck anchors, Durafirm catalog #70-231-900.
2. Railings for the diving tower stairs and springboard pedestals shall be provided as shown on
the drawings. Rails shall be custom fabricated of one continuous length of tubing wherever
possible. The tubing shall be Anodized Type 6061-T6 Schedule 40 Aluminum, 1.500 inch OD
x .120 inch wall thickness – A31 Architectural Class II Clear Anodize. Surface preparation of
Aluminum tubing shall be M32 Medium Satin finish. Floor flanges shall be J Blum #7571
heavy duty aluminum or approved equal. Anchors shall be stainless steel, Type 316L. All
rails shall be vented for Anodizing. All welding shall be in accordance with American
Welding Society Code D1.1-94. Welding electrodes shall be Aluminum 5356. Welding slags,
burrs and splatter shall be removed from hand rail surfaces and all exposed welds shall be
ground smooth. All dimensions shall be field verified prior to fabrication.
I.
Diving boards (4 required) shall be an aluminum extrusion type springboard. The diving boards
shall be a Maxi-Flex Model “B" diving board as manufactured by Duraflex International, Inc.,
model #66-231-330 or approved equal. The diving board shall be 16 ft long and 19-5/8 inches
wide. The top surface shall be finished with three coats combined with a mixture of sand and
white aluminum oxide to affect the non-skid surface with 200 perforations.
J.
Surge tank access hatch (2 required) shall be provided as shown on the drawings. The access
hatch shall be a single door 3 ft.-2 in. x 2 ft.6 in with 1” fillable pan to receive ceramic tile and
grout or concrete fill to match the surrounding deck. The frame shall be ¼ inch extruded
aluminum with built in neoprene cushion and continuous anchor flange. Door shall be ¼”
aluminum plate reinforced with aluminum stiffeners as required. Door shall be equipped with
heavy continuous stainless steel hinges and shall have compression spring operators for easy
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
operation. Door shall open to 90 degrees and lock automatically in that position. Door shall be
built to withstand a live load of 150 lbs. per square foot and equipped with a continuous Type
316L stainless steel hinge, tubular type, and an automatic hold open arm with release handle.
All hardware is to be type 316L, 18-8, stainless steel. A flush lift handle and a snap lock with
removable key wrench shall be provided. Factory finish shall be mill finish with bituminous
coating applied to the exterior of the frame. The access door shall be Type TER-3 single leaf
pan type door as manufactured by the Bilco Company.
K. Surge tank ladder rungs shall be ½ inch Grade 60 steel encased with co-polymer polypropylene
plastic as manufactured by M.A. Industries, Inc, phone 770-487-7761.
L.
Pool Lift
1. Pool lift (4 required) shall be a battery powered handicap lift with footrest assembly. Lift shall
comply with the Americans with Disabilities Act Access Guidelines (ADAAG), be capable of
lifting 400 lbs, and shall include a stainless steel anchor socket, cover, spanner key, and a seat
belt assembly. The following accessories shall also be provided: caddy, arm rest assembly, lift
cover, stability vest, extra battery, wireless controls, and spineboard attachment. All stainless
steel components shall be 316L. Lift to be a Splash Aquatic Lift, model #300-0000,
manufactured by S.R. Smith, the Traveler II XRC500 model #27610, manufactured by
Spectrum Products, or approved equal. Contractor to confirm pool lift fits on pool perimeter
and operates correctly.
2.12
LOOSE EQUIPMENT
A.
Competition floating lane lines shall be as shown on the drawings and described in these
specifications. Floating lane lines shall be a non-turbulent type with wave quelling floats and
3/16” stainless steel coated cable. Floats shall be injection-molded polyethylene. Colors to
alternate the length of the pool with a contrasting solid color for the final 15 feet (25 Yard) / 16
feet 5 inches (25 Meter and 50 Meter) (Architect/Owner to select colors). All floating lane lines
shall be provided as completely assembled and installed with take up reel, type 304 stainless steel
spring and cable lock, hooks, and wrench. 5/8” wrench shall be made of a forged steel shaft with
a polished chrome finish. The take up reel shall be constructed of type 304 stainless steel. The
spool shall be a bronze nickel-plated casting with a nylon sleeve. Floating lane lines shall be
similar to Competitor Swim Products, Competitor Gold Medal 6” Lanes pre-assembled and sized
to fit the length of the pool. Provide Competitor lane line extension hooks as detailed on the
drawings complete with protective sleeve. Floating lane lines with disconnects for shorter distance
is acceptable. Provide contrasting disks located 15 meters from each end to meet resurfacing
requirement. This requirement shall be met for each possible course length.
Quantities:
Competition Pool:
B.
Provide 20 at 25 yards
Provide 22 at 25 meters
Provide 11 at 50 meters
Provide 10 additional extension hooks
Provide one spare floating lane line that can accommodate all race
courses (disconnects are acceptable)
Water polo floating lines shall be as shown on the drawings and described in these specifications.
Floating lines shall be a non-turbulent type with wave quelling floats and 3/16” stainless steel
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
coated cable. Floats shall be injection-molded polyethylene. All floating lines shall be provided
as completely assembled and installed with take up reel, type 304 stainless steel spring and cable
lock, hooks, and wrench. Water polo floating lines shall be pre-assembled and sized to fit the
length of the water polo course. Provide extension hooks as detailed on the drawings complete
with protective sleeve. Floats shall be colored per NCAA and FINA guidelines for each water
polo course as shown on the drawings and listed below. Water polo floating lines shall be similar
to Competitor Swim Products Water Polo Rink, Anti-Wave Water Polo Course Lines, Kiefer
Advantage Water Polo Course Markings, or approved equal.
Colors:
Goal Line
2 Meter Line
5 Meter Line
Half Distance Line
Quantities:
Competition Pool:
C.
White
Red
Yellow
White
Provide 1 set of boundary lines for FINA/NCAA water polo field
of play (disconnects for men and women fields of play are
acceptable)
Provide 4 sets of boundary lines for cross course water polo field
of play
Provide two (2) goal tether lines with 4” white disks for each goal
with a FINA/NCAA field of play. One (1) tether line for each
goal shall include 2 meters of solid red disks to identify the reentry area.
Water Polo Floating Ball Release
1. For pools with floor anchors, the water polo floating ball release device shall be shown on the
drawings and described in these specifications. The release device shall be anchored to the
pool floor in the center of the water polo half distance line using two (2) 316L stainless steel
eyebolts, inserted in 316L stainless steel sleeves. The water polo floating release device shall
be made of high quality plastic or PVC construction and securely fastened to a pull cord. The
water polo floating release device shall be Aquam WP-75995 or approved equal.
D.
Water polo ejection board shall be shown on the drawings and described in these specifications.
The ejection board shall be capable of displaying both teams’ cap numbers, the number of
ejections per cap number, and each team’s remaining time outs. The board shall be ¼” aluminum
material with attached acrylic tracks that fit 2” high quick change letters and colored circles. The
ejection board shall be securely attached to a wall or attached to a moveable stand. The ejection
board shall be custom made by All Star Record Boards, call (814) 725-5834, or approved equal.
E.
Backstroke flags shall be made of PVC material, triangular in shape (12” wide x 17” long), and
alternating in color, butted end to end on vinyl covered stainless steel cable. Submit samples for
review and approval. The cable shall be attached to a stainless steel take up reel at one end and a
stainless steel tension spring end-fitting at the other. Equipment shall be similar to the following
items by Kiefer: backstroke flag (product no. 600800), racing lane cable (product no. 210210),
take-up reel (product no. 210218S), and spring end fitting (product no. 210219). Provide
backstroke flags with team/school name on one side and lane identification on the other.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
F.
Recall rope shall be 1/2 inch yellow polypropylene rope complete with weight rings and two
quick snap connectors made of chrome-plated brass. The rope shall consist of a neco plate
constructed of soft aluminum that is crimped and used to connect the two pieces of rope to form
the required loops. Recall rope shall be Recreonics, catalog no. 92-968 for a 10 lane pool or
custom length.
G.
Lane line storage reel shall be fabricated from a heavy-duty aluminum reel joined together by a 11/2 inch aluminum axle. This unit must ride easily on four hard rubber wheels. The
CONTRACTOR is responsible for assembly. The correct number of storage reels shall be
provided to store all lane line markers. Lane line storage reel to be equal to Competitor Swim
Products, stor-lane reel, Catalog #200 350 with Competitor storage reel cover, catalog #200 351.
H.
Lifeline shall be 3/4 inch blue and white polyethylene rope with floats that are 5 inch diameter by
9 inch long. Floats to be spaced on five foot centers. All metallic rope hooks shall be stainless
steel. Provide lifeline at five foot break between shallow and deep water as shown on the
drawings. Lifeline to be equal to Recreonics no. 14-381.BW or Lincoln Aquatics 44-115 safety
line rope, Recreonics no. 14-381 or Lincoln Aquatics 44-190 locking 5” x 9” floats, and
Recreonics no. 14-456 or Lincoln Aquatics 44-125 rope end hooks.
I.
Hanging nets (2 required) shall be provided to span the width of the pool to protect the interior
walls of the natatorium during water polo. Nets and harness system shall be mounted to
stanchions anchored in the movable stanchion anchors. Nets to be heavy duty knotless nylon.
J.
T-wrench for operation of valve extensions shall be fabricated of ¾” diameter SCH 40 stainless
steel pipe. The T-wrench shall be 4’-0” in length with a 24” long welded “T” handle. The
wrench shall be fitted with a ¾” square stainless steel male end, 1” in length, for operation of
valve extensions at the surge tank. Two complete T-wrenches shall be provided.
2.13
MAINTENANCE EQUIPMENT
A.
The following items are to be supplied by the CONTRACTOR unless otherwise noted. All
proprietary names are to designate performance only. Equal products will be accepted.
1. Wall brush (2 required) - Brush backing shall be a flexible polyethylene material with five (5)
rows of nylon bristles. Pool brush holder shall be permanent mold cast aluminum with
hydrofoil flap. Holder shall have stainless steel screws to facilitate brush changes. Handle
bracket shall be quick detachable mount to fit standard 1 ¼ or 1 ½ inch diameter handles.
Brush to be Recreonics no. 10-135, Lincoln Aquatics 31-020, or approved equal.
2. Skimming net (2 required) - Skimmer head shall consist of one-piece molded plastic frame
with a reinforced, integral handle bracket suitable for quick attachment to a standard 1¼ or 1 ½
inch diameter handle using bolts and wing nut. The standard nylon net shall be attached to the
frame using the groove and spline method. Net depth shall be 4 inches minimum in the center.
Skimmer net shall be manufactured by Skimlife No. SS8, or approved equal.
3. Telescopic Poles (2 required) - Cleaning tool handle shall be of the telescopic design and
fabricated from corrosion resistant, high-quality anodized aluminum. Poles shall be fully
adjustable, to desired length, with a simple twist of a cycolac threaded locking device. Poles
shall consist of a 1 inch tube fitted inside a 1¼ inch tube and be adjustable from a range of 8 ft.
to 16 ft. Handle shall be adjustable from 8 ft. to approximately 16 ft. having a threaded
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
bushing type clamp to lock handle at desired position. Poles shall be manufactured by Pool
King, or approved equal.
4. Portable Vacuum Poles
a. Stainless steel poles (2 required) Vacuum head attachment poles are to have a heavy duty
1¼ inch stainless steel handle with special brass male and female threaded inserts on the
ends. Poles are to be 8 ft. each, totaling a 24 ft. length for vacuum head attachment.
Poles are to be Recreonics no. 10-330 with female thread adaptor being Recreonics no.
10-335 or approved equals.
5. Test Kits
a. Provide two (2) test kits – The first test kit shall feature liquid reagents, color
comparator, waterproof instructions and treatment charts, chemistry guide and water
gram. Test kit to have the ability to test for free and total chlorine (0.5 – 5.0 ppm),
bromine (1-10 ppm), pH (7.0 – 8.0), acid and base demand, total alkalinity, calcium
hardness and cyanuric acid. Test kit shall be Taylor Complete 2005 test kit, or approved
equal.
The second test kit shall be photometric and utilize tablet reagents for stability that will
allow accurate measurement of free and total chlorine (0-10 ppm), bromine, pH,
alkalinity, calcium hardness, and cyanuric acid. The test kit shall have solid-state digital
electronics and built-in filters. The test kit shall be direct-reading with automatic blank
settings, automatic power cut-off, and store the last 10 results in nonvolatile memory.
Test kit shall be a Pooltest 6 system based on the Palintest system of water analysis.
Provide SPH 006D Pooltest 6 - Hard Carry Case Kit and SPC 006 Check Standard or
AquaPRO 6 Test Kit manufactured by Orbeco-Hellige Inc. and Reference Standard Kit
(LP275680).
6. Vacuum Cleaner
a. Vacuum cleaner (filtered water return to pool) - (2 required) to be complete with a 36 inch
dual manifold head with 50 feet of 2 inch floating hose. Hose to be Recreonics, catalog no.
10-422 or approved equal. 24 ft. stainless steel pole shall be available for attachment. The
portable cartridge vacuum cleaner system shall include a 155 square foot T-316 stainless
steel up-flow single cartridge filter, a 1 HP self-priming thermoplastic self-priming pump 11/2” suction and discharge connection and 110 cubic inch strainer capacity. Cartridge shall
be Harmsco no. ST/155 or approved equal. The pump motor shall be 115/230 volt single
phase, 60-cycle, open-drip proof and shall be UL and NSF listed. The pump motor shall be
provided with a 120-volt Hubbell switch, weather proof switch cover, in-line pre-wired
GFCI and a 100’ power cord. The cord shall be wired to a 20 amp, 115/230 volt switch
which shall be mounted on pump motor. All interconnecting pipe and fittings shall be
schedule 40 PVC. The entire assembly shall be bolted to a T-316 stainless steel cart and
shall have pneumatic wheels with grease fittings and roller bearing hubs. The system shall
be provided with one spare cartridge filter. Unit to be Recreonics, catalog no. 10-806,
Lincoln Aquatics no. 27-010, or approved equal. Accessories shall include a 1½ inch x 25
ft. discharge hose with stainless steel hose clamp. Hose to be manufactured by Quaker
Plastic Corporation no. QT-131, or approved equal.
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
7. Robotic Pool Cleaner
a. DuraMax Robotic Pool Cleaner
1) (Dive Pool) Provide one motor driven automatic swimming pool vacuum device.
Cleaner weighs 41 lbs and has internal water-cooled brushless drive motor with
automatic program to clean the pool floor and walls, travelling 1¼ ft per second,
scrubbing pool surfaces with onboard rubber brushes. Two separate internal oil-cooled,
water-cooled, brushless pump motors filter 12,000 GPH, vacuuming a 2 ft wide path
using two offset 7½ square inch suction inlets underneath, filtering fine debris <10
microns small and solids as large as 1½ inch into an internal reusable filter bag. Solid
½” 316 stainless steel axles extend the length of the cleaner connecting to a
commercial-grade drive-train with Kevlar reinforced drive belts. Stainless steel
reinforced side plates are capped with soft gray tracking wheels for durability and
corner and curve tracking agility. Unit complete with remote control, air sensor,
UltraKart Junior, 120 ft cord, set of SP3008A PVA brushes (for tile finishes) , filter bag,
digital timer, power supply with 24 volt transformer, 1 hour cleaning cycle delay option,
operator manual. Requires 110 volt GFCI receptacle onsite, consumes 5 amps
electricity. The pool cleaner shall be a DuraMax Duo Junior as manufactured by Aqua
Products, Inc., or approved equal. Include with 150 ft cord.
2) (Competition Pool) Provide one motor driven automatic swimming pool vacuum
device. Cleaner weighs 65 lbs and has internal water-cooled brushless drive motor with
automatic program to clean the pool floor, travelling 1¼ ft per second, scrubbing pool
surfaces with onboard rubber brushes and four power-washing jets. Three separate
internal oil-cooled, water-cooled, brushless pump motors filter 18,000 GPH, vacuuming
a 4 ft wide path using six offset 5½ square inch suction inlets underneath, filtering fine
debris <10 microns small and solids as large as 1½ inch into three internal reusable
filter bags. Solid ½” 316 stainless steel axles extend the length of the cleaner
connecting to a commercial-grade drive-train with Kevlar reinforced drive belts.
Stainless steel reinforced side plates are capped with soft gray tracking wheels for
durability and corner and curve tracking agility. Unit complete with remote control, air
sensor, UltraKart, 150 ft cord, set of SP3009 PVA brushes (for tile finishes), 3 filter
bags, digital timer, power supply with 24 volt transformer, 1 hour cleaning cycle delay
option, operator manual. Requires 110 volt GFCI receptacle onsite, consumes 6 amps
electricity. The pool cleaner shall be a DuraMax Trio as manufactured by Aqua
Products, Inc., or approved equal. (Include with infrared if needed to detect large
obstacles than cannot be climbed like bulkheads).
8. Stainless Steel Cleaner - Provide a stainless steel cleaner. The cleaner shall comprise of one
(1) gallon of organic passivation solution. It shall be complete with instructions for proper
maintenance of stainless steel surfaces and material safety data sheets for the passivation
solution. The cleaner shall be the Spectra-Clean System 2 as manufactured by Spectrum
Products. Product to be applied with 3M scouring pad, or equivalent.
9. Stainless Steel Protective Coating
a. Provide protective coating on all swimming pool rail goods. The coating shall provide
envelope protection. Surfaces coated must be clean and dry and free of any type of oil,
films, grease, silicones polishes and waxes, anything that leaves a film on the surface.
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Care shall be taken not to clean the surface with any type of cleaner or solvent that may
leave behind a thin film. The coating shall be applied at approximately ½ mil WFT
yielding a dry film thickness of 3-5 microns. Three coats are required. Allow to dry to
touch between coats. The coating shall be ProtectaClear-AF as manufactured by
Everbrite and distributed by TMI Salt Pure Corporation – 800-818-8266 or Spectra
Shield as manufactured by Spectrum Products – 800-791-8056.
2.14
SAFETY EQUIPMENT
A.
The following items are to be supplied by the CONTRACTOR unless otherwise noted. All
proprietary names are to designate performance only. Equal products will be accepted.
1. Ring buoy and extension rope (8 required) – Buoy shall be 24 inch diameter vinyl clad PVC
foam with a metal ring molded inside. Buoy shall have a 3/8 inch polyethylene rope attached
to it at four points and be a minimum 60 feet in length. Preserver shall be U.S.C.G. approved.
Buoy and rope to be mounted at each lifeguard chair on hooks. Ring buoy to be manufactured
by Cal-June no. G-24-WH or approved equal. Throw rope to be Recreonics no. 12-261,
Lincoln Aquatics No. 42-050, or approved equal.
2. Life hook and pole (2 required) – Life hook shall be an anodized aluminum 3/8 inch OD
"shepherd's crook" with a 1-1/8-inch OD handle attachment suitable for a 1¼-inch 16 ft.
aluminum extension pole. Hook shall be of looped construction. Each pole to be provided
with a set of spring type stainless steel pole clamps for mounting on each lifeguard chair. Life
hook shall be equal to manufactured by Rainbow no. 153. Pole clamps shall be Recreonics no.
10-353, or approved equal.
3. Spineboards (2 required) - Spineboard shall be 72” long x 20” wide, constructed of 100%
virgin high density polyethylene. The design shall provide stiffness and torsional rigidity
while remaining lightweight. The spineboard shall accommodate up to 500 lbs and shall
feature customizable buoyancy that allows users to adjust the buoyancy by inserting
polyethylene foam rods (supplied with the spineboard). There shall be (10) handholds
around the perimeter of the board. The spineboard shall be supplied with one (1) 2-piece
head immobilizer, one (1) head strap, four (4) body straps, one (1) head immobilizer with
head bed, and two (2) flotation rods. The spineboard shall be CJ Rescue 6 package as
manufactured by CJ spineboard at 1-206-824-8886 or approved equal. The CONTRACTOR
shall provide one (1) set of heavy duty stainless steel utility hooks per spineboard for storing
the spineboard at a convenient and readily accessible location near the pool (Recreonics
catalog no. 10-362).
4. First aid kit (2 required) - First aid kit shall be a 24 unit kit per American Red Cross standards
as manufactured by Swift First Aid, or approved equal.
5. Rescue tube (8 required) - Provide one rescue tube for each lifeguard chair. Rescue tube to be
manufactured by Bremen Corporation No. 21414-14, or approved equal.
6. Safety eyewash station (3 required) - Safety eyewash station shall be a self-contained system in
which eyewash bottles are securely positioned in a portable holder. Eyewash bottles shall be
32 ounces and easily removable from case, and shall contain a sterile, saline solution with the
ability to neutralize a varying quantity acids or caustics. Eyewash stations shall be equipped
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with a double back screw and holes for easy mounting in location to be determined by the
Architect. Stations shall be Recreonics 12-033, Lincoln Aquatics 49-026, or approved equal.
7. Safety eyeglasses - Provided a safety eyeglass dispenser station containing ten (10) pairs of
safety glasses. Eyeglasses shall be ANSI/OSHA accepted, and be equal to Lab Safety Supply
Inc. (1-800-356-0783) no. WQ-14740B.
8. Bag Valve Masks – Provide two (2) bag valve mask assistant resuscitation systems, one size
Adult (1500ml tidal volume) and one size Infant/Child (450ml tidal volume). Product shall be
a latex free disposable bag mask unit with support strap, transparent patient valve, and textured
surface to eliminate slipping. Integral swivel valve, available with a closed reservoir system.
Standard pack includes resuscitator, oxygen reservoir and a transparent bag for storage. Bag
Valve Masks shall be Ambu SPUR II, or approved equal.
2.15
THERMOMETERS
A.
The following items are to be supplied by the CONTRACTOR unless otherwise noted. All
proprietary names are to designate performance only. Equal products will be accepted.
1. Portable thermometer (3 required) shall be a molded ABS plastic tube body type with the
ability to measure temperature in both degrees Fahrenheit and Celsius. A 3 ft. polyethylene
cord is to be attached to thermometer. Thermometer is to be manufactured by PacFab/Rainbow no. R141036 or approved equal.
2. Inline thermometer to be near the heating loop and shall have a 9 inch adjustable angle with
a minimum 6 inch stem. There shall be a minimum of two (2) thermometers per loop, and
must have ability to read temperature in both degrees Fahrenheit and Celsius.
Thermometers are to be Recreonics no. 32-702, Lincoln Aquatics no. 21-125, or approved
equal.
3. Digital temperature indicator (3 required) shall be a 115 volt, wall mounting case, sensor and a
stainless steel immersion well. Weiss Instruments model 20DT or approved equal. Digital
thermometer not required if Chemtrol 3000 is used.
2.16
SWIMMING POOL FINISHES
A.
The dive platforms shall have Roughtex mounted on top of Mondo.
B.
Mondo Divetex
1. Material:
a. Rubber surfacing shall be prefabricated, calendered and vulcanized with a particular
closed cell structure, based on special isoprenic rubbers, mineral filters, stabilizing
agents and pigmentation, highly resistant to UV rays and atmospheric agents, with
system of differential elasticity between top surface and base.
b. Surface shall have a thickness of 3/8” (8mm).
c. The front edges (horizontal and vertical) of this material shall be cut by the factory, and
be a clean, straight edge.
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2. Adhesive:
a. The adhesive shall be a high performance two-part polyurethane adhesive for both indoor
and outdoor installations of the Mondo DIVETEX surfacing. It shall have an excellent
resistance to moisture, heat, and water.
b. The adhesive shall be PU 105 Polyurethane Adhesive.
3. Installation:
a. Installation of the DIVETEX surfacing shall be performed by a flooring contractor
experienced in projects of this size and scope.
b. The vertical surfacing of the front edge of the platform shall be installed before the
horizontal surfacing. The length of the horizontal surfacing shall include the length of
the concrete platform plus the thickness of the vertical surface; the horizontal surface
shall overlap the vertical surface.
c. The concrete surface shall be clean, and without paint or other contaminants.
d. Scarify the concrete surface prior to installation.
e. If curing compounds were used, the surface must be thoroughly cleaned prior to
installation.
f. After installation, add weight around the edges and seams of the surfacing material until
the adhesive is completely dry.
g. Seal the edges of the surfacing with a bead of clear silicone caulk.
4. Delivery, Storage, and Handling:
a. Materials must be delivered in the manufacturer’s original unopened and undamaged
containers with identification labels intact.
b. Store material upright on a clean, dry, flat surface protected from all possible damage,
and protect from exposure to harmful weather conditions.
c. Recommended environmental condition for storage is a minimum of 55° F.
5. Site Conditions and Installation:
a. Maintain a stable room and concrete temperature for a period of 48 hours prior, during,
and 48 hours after installation. Recommended range is between 65° F and 86° F.
b. Installation to be carried out no sooner than the specified curing time of the concrete.
c. Moisture vapor emission content of the concrete slab must not exceed 5 lbs. / 1,000 SF /
24 hours when tested using the anhydrous calcium chloride test as per ASTM F1869.
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d. Installation of the DIVETEX flooring shall not commence until all other trades in the
building are completed.
e. Follow manufacturer’s installation instructions for both DIVETEX flooring and PU 105
adhesive.
6. DIVETEX padded surface and PU 105 adhesive shall be manufactured by Mondo USA and
supplied by Springboards and More (Phone #: 877-348-3246).
C.
Rough-Tex
1. Three-Ply Black Rough-Tex
a. Material shall be 5/16” thick, high strength synthetic fabric with a nylon backing, and a
225 lb tension rating.
2. The front edges (horizontal and vertical) of this material shall be cut by the factory, and be a
clean, straight edge.
3. Adhesive:
a. The adhesive shall be a high performance two-part polyurethane adhesive for both indoor
and outdoor installations of the Rough-Tex surfacing. It shall have an excellent
resistance to moisture, heat, and water.
b. The adhesive shall be PU 105 Polyurethane Adhesive.
4. Installation:
a. Installation of the Rough-Tex surfacing shall be performed by a flooring contractor
experienced in projects of this size and scope.
b. The vertical surfacing of the front edge of the platform shall be installed before the
horizontal surfacing. The length of the horizontal surfacing shall include the length of
the concrete platform plus the thickness of the vertical surface; the horizontal surface
shall overlap the vertical surface.
c. The concrete surface shall be clean, and without paint or other contaminants.
d. Scarify the concrete surface prior to installation.
e. If curing compounds were used, the surface must be thoroughly cleaned prior to
installation.
f. After installation, add weight around the edges and seams of the surfacing material until
the adhesive is completely dry.
g. Seal the edges of the surfacing with a bead of clear silicone caulk.
5. Delivery, Storage, and Handling
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a. Materials must be delivered in the manufacturer’s original unopened and undamaged
containers with identification labels intact.
b. Store material upright on a clean, dry, flat surface protected from all possible damage,
and protect from exposure to harmful weather conditions.
c. Recommended environmental condition for storage is a minimum of 55° F.
6. Site Conditions:
a. Maintain a stable room and concrete temperature for a period of 48 hours prior, during,
and 48 hours after installation. Recommended range is between 65° F and 86° F.
b. Installation to be carried out no sooner than the specified curing time of the concrete.
c. Moisture vapor emission content of the concrete slab must not exceed 5 lbs. / 1,000 SF /
24 hours when tested using the anhydrous calcium chloride test as per ASTM F1869.
d. Installation of the Rough-Tex surfacing shall not commence until all other trades in the
building are completed.
e. Follow manufacturer’s installation instructions for both Rough-Tex surfacing and PU
105 adhesive.
7. Rough-Tex slip-resistant surfacing shall be supplied by Springboards and More (Phone #:
877-348-3246).
2.17
WATERPROOFING
A. Products
1. Interior surfaces of Gutter, Surge Tank, and Backwash Pit with NO additional finishes: Apply
two (2) coats of Aquafin lC (total 100 mil thickness), Xypex, Vandex, Plainseal 88, Thoroseal
directly to surface of gutter, surge tank and backwash pit.
B.
Surface Preparation
1. Surface shall be structurally sound and free of any foreign substances and debris that could
reduce or impair adhesion. Surfaces shall be roughened by sand blasting, water jetting, shot
blasting, scarifying, or grinding. Surface defects or holes shall be patched per
manufacturer’s recommendations.
C.
Application
1. Do not apply materials under conditions where the ambient air temperature is less than 40
degrees Fahrenheit, or to a frozen substrate.
2. At high temperature above 86 degrees Fahrenheit, protect application from direct sunlight and
wind to prevent premature surface drying and shrinkage cracks.
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3. Confirm with manufacturer recommendations whether the substrate surface is required to be
dampened or dry.
4. Concrete substrate shall be maintained moist a few hours before application of waterproof
coating. However, surface shall be free from any standing water. Apply first coat of
waterproof coating with a trowel or a brush. First coating shall be worked against the
concrete surface as to ensure a uniform coat. Waterproof coating shall be allowed to harden
for a time period of at least 5 hours and not to exceed 24 hours before the second coat is
applied. Application of the second coat of waterproofing can be done by the use of a trowel.
5. All mixing of products, quantities and application procedures shall be done in accordance
with the manufacturer’s recommendations.
2.18
SEALANTS
A.
Provide sealed expansion joints as shown on the pool and pool structural drawings or noted on the
Contractor’s construction/expansion joint layout, and as required. Expansion joints shall be
constructed and sealed as indicated and in accordance with the manufacturer’s recommendation.
Sealant to be Latasil by LATICRETE International, Inc., phone: 1.800.243.4788 x235 or Deck-OSeal by W.R. Meadows, phone: 817.598.1969.
1. Latasil, one component, neutral cure, high performance, 100% silicone sealant in the color(s)
as selected. Shall be used in conjunction with Latasil 9118 Primer per manufacture’s
recommendations.
2. Deck-O-Seal, two component (gun-grade), high resilience, non sag, non flowing, polysulfidebased sealing compound in the color(s) as selected. Shall be used in conjunction with P/G
Primer per manufacture’s recommendations.
B.
Material Storage
1. All materials are to be stored in the original unopened factory containers in a cool dry location
60 to 80 degrees F. Protected from the elements and the hazards of construction. Open only as
many containers as can be used in any particular period.
C.
Joint Preparation
1. Clean the joints of all deleterious material, to sound, clean and dry substrate.
2. If the joint is existing and part of a renovation, inspect and verify that all joints have firm, solid
sub-surface support up to the underside of the structural slab. Identify those joints that do not
have such support and fill any voids under the joint with a cement slurry (being careful not to
fill the joint space itself) consisting of the following:
a. Two (2) parts water (by weight) 10 gallons
b. One (1) part Portland cement 47 lb bag
c. ¼ to ½ part bentonite ½, 50 lb bag
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3. In mixing the slurry it is recommended that the water be added first, then the cement, and
finally the bentonite. The more bentonite the faster the set. Do not get the slurry on the joint
itself.
4. Joint is to be formed or filled with an approved, resilient, non-asphaltic, closed cell,
polyethylene joint filler material down to firm substrate. Allow space at the top of the joint for
the installation of approved closed cell polyethylene backer rod and install same to the
required depth below the surface of the slab to control the depth of the sealant bead to within
manufacturer requirements.
D.
Surface Preparation
1. Concrete surfaces to receive sealant must be fully cured, clean, dry and free of dirt, dust and
any deleterious material that might compromise the adhesion and performance of the sealant.
Curing aids, form release agents and joint former residue must be completely removed, if
necessary by sand blasting and/or grinding. Loose dust must be brushed off.
2. Prime all surfaces to receive Latasil sealant with Latasil 9118 Primer prior to sealant
application, and surfaces to receive Deck-O-Seal sealant with P/G Primer prior to application.
E.
Application
1. Apply sealant in accordance with the manufacturer’s recommendations.
2. Tool the joint immediately after application to insure a firm, intimate contact with the joint
interface.
3. Remove excess sealant and smears from adjacent surfaces with Xylol or Toluol before sealant
cures.
4. After the sealant has fully cured (generally a minimum period of five days at 72 degrees and
50% humidity), paint the surface of the sealant with a chlorine resistant chlorinated rubber or
equivalent pool paint, such as Ramuc, in a compatible color as selected by the Architect.
NOTE: Latasil cannot be painted.
2.19
MOVABLE BULKHEAD
A.
MATERIAL
1. The CONTRACTOR shall provide and install a movable bulkhead (1 required) fabricated to
match the design of the end wall gutter. The bulkhead must span the width of the pool. The
dimensions are nominally 4 feet 0 inches wide by 75 feet 0 inches long by 5 feet 0 inches deep.
The top of the bulkhead shall be designed as a walkway and shall be flush with the end walls
of the pool as shown and extended over the rollout gutter on the side walls.
2. Provide a complete fiberglass movable bulkhead that is entirely constructed of materials which
are unaffected by corrosion when immersed in chlorinated swimming pool water. Paint or
protective coatings on any internal or external areas of the bridge are prohibited.
3. The movable bulkhead in its original solid state must be permanently compatible with
chlorinated swimming pool water. The use of carbon steel, mild steel, aluminum, manganese,
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copper, brass or wood for any structural section, fasteners, hardware or parts of the bridge will
not be allowed.
4. Bulkhead manufacturer shall supply anchor pin assemblies and support structure integral to the
bulkhead, and be responsible for coordinating proper alignment, operation, and support of the
bulkheads on the gutter curb, as well as its locking mechanisms that will rigidly set the
bulkhead at each course as shown on the drawings.
B.
The bulkhead shall be designed to support 5600 lbs with ½” maximum deflection. The safety
factor for all live and dead loads shall be at least 10. The bulkhead shall be designed for a uniform
lateral live load of at least 30 pounds per linear foot and a point load of at least 500 pounds at the
center with a maximum deflection of ½ inch. Racing lane cup anchors shall be molded into the
structure and be designed to prevent pullout at a load of at least 400 pounds each.
C.
Bulkhead shall feature a toe ledge as shown on the drawings. The toe ledge shall allow water to
flow through the bulkhead to ease the moving of the bulkhead.
D.
Bulkhead shall be fitted with anchors for racing starting platforms in the locations noted and in the
positions required by the manufacturer of the selected starting platforms. The anchor installations
shall be reinforced to produce negligible deflection under the maximum loading conditions
recommended by the starting platform manufacturer.
E.
Removable guard rails shall be provided at both ends of the bulkhead. Rails shall be custom
fabricated of one continuous length of tubing. The tubing shall be type 316L stainless steel, 1.900
inch OD x .145 inch wall thickness polished to 320 grit.
F.
The internal air chambers shall be so constructed that when adding air pressure to raise the
bulkhead for a change in position it shall be balanced and eliminate the need for removal of the
starting platforms. Moving the bulkhead shall be easily accomplished by one person at each end
of the bulkhead. Units shall glide freely on corrosion proof guides, or skid plates, both at the
gutter lips and side walls. Provide all equipment, including blowers, necessary to operate air
flotation chambers.
G.
Suitable means of anchoring the bulkhead shall be provided to resist all dead and live load
components. Contractor shall provide and install the anchor plates at the park positions shown on
drawings. Install a 1” thick fiberglass pin plate receptacle at each park position similar to Stark
Model Number SB051. Bulkhead shall be anchored to the end wall for long course competition.
H.
Suitable provisions for electronic timing system shall also be provided. Access hatches shall be
included at both ends of the bulkheads to facilitate inspection of the interior of the bulkheads,
anchor mechanisms, and to allow for installation of future wiring in an existing raceway gutter to
carry electronic timing cables and conductors.
I.
Provide factory trained and experienced personnel for coordination, consultation, and instruction
for the actual bulkhead delivery and for training of the Owner's personnel in the use, operation,
and maintenance of the bulkhead. Provide necessary instruction and coordination as required to
coordinate anchorage installation.
J.
Provide racing lane line anchors at water line along only those faces of the bulkheads where
shown on the drawings.
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K. Lane line and men and women's water polo boundary line anchors shall be included with the pool
bulkhead. The cup anchors shall be molded into the structure and supplied with a stainless steel
pin for attachment.
L.
Racing lane targets shall be supplied on those sides of the movable bulkhead where shown on the
drawings. Lane targets to coincide with lanes on the pool floor and markers on the pool walls.
M. The entire surface of the bulkhead shall be slip resistant. This shall include the black wall targets
and white field surface.
N.
Quality Assurance
1. A factory quality control program must be submitted to the Owner/Architect with submittals,
which ensures that structural tolerances critical for Movable Bulkheads used for competition
have been maintained.
O.
Basis of design: The bulkhead shall be manufactured by Stark Bulkheads, Inc. (360-403-7707), or
approved equal.
P.
Guarantee
1. The manufacturer and Contractor shall guarantee that on completion of the installation, the
unit will move freely from one location to the other, providing walls are straight and parallel
and do not vary more than plus or minus 1/2 inch and will not rack or bind/stop when moved.
Bulkhead manufacturer and Contractor shall coordinate the unrestricted travel of the bulkhead
the entire length of the pool (unless noted differently on the drawings).
Q.
Installation of Bulkhead
1. The installation shall be true, level and plumb with the existing structure to permit full range of
movement.
2. The exposed surfaces will be free of all imperfections or irregularities. A field inspection by
the Owner/Architect will be conducted upon completion of the installation to ensure
compliance before acceptance.
3. During installation, protection shall be provided for the existing deck, pool walls, pool floor
and general building construction. The Contractor shall bear the costs for replacement or
repair as a result of damage by neglect.
4. Support jacks shall be used beneath the bulkhead until the pool is filled and the bulkhead
becomes self-supporting.
5. All costs for installation onto the pool gutter, adjustments, certification of dimensions and
cleanup upon completion shall be borne by the Contractor.
6. Contractor shall locate the anchor plates at each stop point and at end walls. Race course
dimensions shall be field certified in compliance with the competitive standards having
jurisdiction and be submitted to Owner/Architect in writing by the certifying engineer or land
surveyor.
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7. The bulkhead shall not be moved until water is in the pool and at the level of the gutter lip.
8. Provide instruction to the Owner's personnel in use, operation, and maintenance of the
bulkhead.
2.20
POOL COMPRESSED AIR BUBBLING SYSTEM - SPARGER
A. Cast into the pool shell 5 depressions to house an air sparger under the following: 1 – meter
springboard, 3-meter springboard, 5-meter platform, 7 ½-meter platform, and 10-meter
platform. Locate and dimension as indicated on drawings. Provide the sparger units into the
depressions. Make all pipe connections from each sparger unit and run each pipe into the
storage room and connect to the compressor unit.
B.
CONTRACTOR shall provide the control box for operation of the air bubbler system in a wall
near the diving pool and shall provide the wiring from the control box to the compressor unit.
CONTRACTOR shall provide the control wiring.
C.
Provide one (1) 60-CFM rotary screw compressor rated 75 CFM at 200 PSIG actual with one
(1) 30 HP motor (1800-RPM) O.D.P. 480V, 3 phase, 60 cycle. Compressor shall be completely
factory pre-wired and shall include a standard full voltage magnetic starter. The compressor
package includes coalescing and charcoal filters with auto drain, integral air dryer, a regulator
and remote motor starter. Compressor as manufactured by Kaeser, Ingersol Rand, Atlas Copco,
or approved equal will be considered.
D. Provide one (1) vertical air receiver suitable for 200 PSIG working pressure with total volume
of 120 gallons with auto drain.
E.
Provide Diffusers and Piping System - There is one diffuser strip for the 1, 3, 5, 7 ½, 10 meter
platform(s). The strip will be embedded in the pool bottom and supplied by 3" ABS, stainless
steel, HDPE OR Schedule 80 CPVC piping. Each diffuser location shall be equipped with an
accessible enclosure that houses a stainless steel swing check valve. All Underground piping
shall be approved for use with compressed air up to 200 PSI and tested on site to 75PSI.
F.
Provide Control System - There are several components to the control system, the transmitter,
receiver, power supply, injection valve and interlocks. The control system will require a 115
VAC supply and a hard-wire connection between the control station and the compressor. The
Architect shall approve the location of the receiver. The wiring shall be done per Division 26
and coordinated with the pool wiring.
G. Provide Remote Control Transmitter - The one-channel control transmitter is similar to a
television or other remote control device. The transmitter case is made of high impact plastic
with a fully sealed membrane type switches to provide a dirt and moisture free environment.
The unit is small and light enough to be placed in shirt pocket or hung around the neck on a
lanyard. The switches are alternate action; pushing once turns the system on. Transmitter shall
be capable of controlling each sparger diffuser line with a separate button.
H. Provide the following components: one (1) ball valve for tank shut-off, automatic water trap
(115V), tank safety valves set at 220 PSIG, pressure gauges, pressure reducing valve, pressure
switch 200/175 PSI, punch opening electric activated air-operated mechanism (corrosion
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resistant solenoid valves), remote control device on coil cord, and one quick disconnect fitting
for an air hose in the filter room, easily accessible to the pool operator.
I.
All above ground exposed piping shall be copper or stainless steel.
J.
A supplier’s representative for the equipment specified shall be present at the job site for
installation, assistance, inspection and certification of the installation, equipment testing,
startup assistance, and training of the Owner’s personnel. Prior to startup, all equipment
described herein shall be inspected for proper alignment, proper connection, and performance
by means of a functional test.
K. Basis of design: Sparger system shall be manufactured by Aquair bubbling system, Aquatic
Development Group Inc., Natare Corporation, or approved equal.
2.21
POOL COVERS
A. Automatic pool covers shall be provided for the competition pool and dive pool. A manual
pool cover shall be provided for the spa. Reels shall be mounted on natatorium wall per
architectural drawings.
B.
The swimming pool cover system shall be the standard catalogued product of a company regularly
engaged in the manufacture of such products. Alternate swimming pool cover systems shall not be
considered unless equal to the specified product and must be submitted for approval not less than
ten (10) days prior to bid date. Submittal data must include complete documentation relating to
all the specified features and include manufacturer’s sales literature, specification sheets, energy
conservation audit, installation/maintenance manuals and engineering drawings.
C.
The swimming pool cover system shall be of the energy conservation type. The covers shall be
supplied in panel sections, allowing for ease of storage, and ease of installation and removal. The
cover panel materials shall withstand the commercial aquatic facility’s environment. Panels shall
receive edging materials to strengthen the panel and to allow for deployment and retrieval without
damaging the panel’s main body materials. All materials shall be ultraviolet stabilized to ensure
long life. The cover panels shall be reversible, allowing for the panels to be rotated, using both
sides and end to end, every other year, supporting additional panel life. Warning labels shall be
affixed in four places to both sides of the panel and shall instruct in the panels proper use and
warn patrons of hazards associated with covered swimming pools. Cover panel systems shall be
supplied with a protector, for use when panels are not deployed.
D. Basis of design: The swimming pool cover system and its accessory items shall be manufactured
by Spectrum Products, T- Star Enterprises, or approved equal.
E.
Cover Material
1. Material shall be woven, twelve by twelve count per inch, high-density polyethylene,
ultraviolet stabilized film fabric, flame laminated to both sides of a 1/8-inch thick, closed cell,
medium density, white, polyethylene foam. The woven polyethylene film fabric shall be
coated on the exposed sides with an ultraviolet stabilized, chemically resistant polyethylene
coating. The combination of film, foam and woven components shall be non-toxic, nonabsorbent, non-permeable and buoyant. Color shall be blue on upper surface and on under
surface. In addition to the above, cover shall meet the following requirements:
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Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
2. Cover Design Criteria
a. Cover panels shall be divided into widths suitable for convenient daily use (removal and
deployment), totally covering the surface of the swimming pool without gaps or overlaps.
Cover panels shall be compatible for use with storage reel(s) and not exceed a width equal
to one foot less than the length of the storage reel winding tube on which it is to be stored.
3. Edging
a. Protective-reinforcement edging shall be installed along ends and sides of each panel. A
weighted non-metallic/non-corroding material shall be sewn into the panel protective
edging. The weighted edge shall be flat and shall conform to the shape of the cover. Cover
end edges shall be reinforced with a double layer of polyethylene-coated film fabric. The
end edging shall be designed, in such a manner as, to prevent panels from diving when they
are being pulled across the surface of the swimming pool. The encapsulated weighted
edging shall be wrapped around the cover corners. The entire corner construction shall be
reinforced with a 1/8-inch thick load dispersion plate. Both ends of each cover panel shall
be equipped with no less than three (3) non-corrosive/metallic grommets and quick-release
loops for easy connection to a storage reel or to the next cover panel.
4. Sewing
a. All sewing shall be double locking chain stitch, using ultraviolet stabilized, chemically
resistant, 100% polyester thread. Main body seams shall be double overlap parallel double
chain lock stitched. No butt, welded, glued or heat-sealed seams will be employed. All
sewing shall be accomplished with computer-controlled machines, synchronizing speed
with stitch length to assure uniformity and strength.
5. Warning Labels
a. Warning labels consistent with the recommendations of the Federal Consumer Protection
Agency shall be permanently affixed to each end of each cover panel and to the sides of
perimeter panels on both side of the panel.
F.
Products
1. The pool cover system shall be the Marias II for standard rectangular swimming pools
model #500013 by Spectrum Products, the Energy Saver by T-Star Enterprises, or approved
equal. The competition pool and dive pool shall have a R-4 rating while the spa shall have a
R-12 rating.
2. The Portable Storage Reel Assembly shall be the Bitterroot II 15-foot double tube storage reel
model #50130 or approved equal.
PART 3 EXECUTION
3.1
EXISTING CONDITIONS, INSPECTION AND PREPARATION
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
A.
Carefully examine all of the contract documents for requirements that affect the work of this
section. Prior to starting any work, notify the General Contractor of defects requiring correction.
Do not start work until conditions are satisfactory.
B.
Verify that all work by others, related to this section, has been completed. This includes all
earthwork, concrete work, and mechanical, electrical and plumbing connections.
C.
Protect all materials and work completed by others from damage while completing the work in
this section.
3.2
FIELD MEASUREMENTS
A.
Verify benchmark and pool location prior to layout.
B.
If field measurements differ from the construction drawing dimensions, notification shall be given
to the Architect prior to proceeding with work.
3.3
EXCAVATION, REINFORCING STEEL AND SWIMMING POOL PNEUMATICALLY
APPLIED OR CAST-IN-PLACE CONCRETE
A.
Reference Division 31 - Earthwork
B.
Reference Division 3 - Concrete
C.
Reference Section 033719 – Swimming Pool Pneumatically Applied Concrete
D.
Reference Section 033053 – Swimming Pool Cast-In-Place Concrete
3.4
TOLERANCES FOR CONSTRUCTION OF THE POOL SHELL
A. The completed structures shall be constructed level and to the dimensions, elevation, depths
and thickness as shown on the plans.
B.
The elevation tolerance of the pool shell and gutter lip shall be plus or minus 1/8 inch.
C.
The vertical wall surface tolerance of the pool shell, for the first 36 inches from the water
surface shall be plus or minus 1/4 inch from plumb measured with a 6 foot straight edge.
D. For competitive race courses, the following pool shell tolerances shall apply:
Course
25 yard
25 Meter
50 Meter
Tolerance
+ 1 3/16” /- 0”
+ 1 3/16”/- 0”
+ 1 3/16”/- 0”
Minimum
75’ – 3/4”
82’ – 1”
164’ – 1 1/4”
Maximum
75’ – 1 15/16”
82’ – 2 3/16”
164 – 2 7/16”
1. The above dimensions include allowances for a touchpad at each end of the course. The
maximum dimension includes the construction tolerance. These above tolerances also apply
to courses utilizing moveable bulkhead(s).
2. The above dimensions apply to a vertical plane extending 1’-0” above and 3’-0” below the
surface of the water at all points of both end walls.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
E.
The Contractor shall provide the services of a registered engineer or land surveyor who shall
measure and certify the elevations of the gutter lip at 10 foot centers as well as the length of
each lane for each possible racing course. Course length survey must be made with the pool
filled with water between 78 and 82 degrees Fahrenheit. Forms for the lane measurements are
available from USA Swimming (719-866-4578) and must be submitted by the Contractor.
F.
Ground wires or grade pins, if used, shall be installed in such a manner that they accurately
outline the section of the pool shell as indicated on the plans. They shall be located at intervals
sufficient to insure proper thickness throughout and shall be maintained tight. Grade pins or
grounding wires shall not be permanently embedded in the pool shell.
3.5
WATER TIGHTNESS TEST
A.
This test applies to the pool(s), the spa(s), the surge tank(s), and the gutter system(s). The water
tightness test shall be completed prior to the application of the pool finish.
B.
Water Tightness Test Procedure
1. Preparation
a. Allow the concrete structure to set 28 days for curing purposes. Once the pool shell has
gained sufficient strength to withstand the test load and after all the outlets have been
securely sealed, the pool shall be filled with water.
2. Fill: Fill and then isolate the pool(s), the spa(s), the surge tank(s), and the gutter system(s).
The water tightness test shall begin after the vessel has been filled for a minimum of three (3)
days. During the filling, all outlets shall be monitored for water tightness and all concrete
joints shall be monitored for any visible leakage. If any visible leakage from the vessel is
observed, the condition shall be corrected prior to the start of the test.
a. After the initial fill, all ground water shall be removed from the pool sight sump or the
pool location de-watering system. This shall be completed prior to the start of the water
tightness test. De-watering of the pool sight sump shall be maintained during the entire
duration of the test.
3. Evaporation/Precipitation Measurement Procedure
a. Fill a floating, restrained, partially filled, calibrated, open container with water and allow
the container to float within the pool during the testing period. This will be used to measure
evaporation and precipitation.
4. Measurement
a. On a separate sheet of paper draw a sketch of the pool. Measurements shall be taken at the
pool(s), the spa(s), the surge tank(s), and the gutter system(s). Multiple test points with
averaging are recommended for vessels which will be exposed to wind. Document the
separate findings on the chart below. Repeat the measurements and document every 12
hours for a total of three (3) days. The General Contractor shall check the pool(s), the
spa(s), the surge tank(s), and the gutter system(s) for water loss with the Architect or
Owner’s representative every 12 hours.
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
Total
Allowable
Water Loss:
Total
Gallons:
_________
_
(0.1%) x
0.001 =
_____
Pool
Measurements
________
Pool
Pool or Spa Gutter
_________ System
_
or
_________
Allowable
Loss
Pan Depth
Per 24 Hrs.
Surge Tank
or _________
Pan
Measurements
12 Hrs.
24 Hrs.
36 Hrs.
48 Hrs.
60 Hrs.
72 Hrs.
5. Total Loss = 7.481 x Structure Surface Area (SF) x Total Water Loss per Day (FT) –
Evaporation per Day (FT) + Precipitation per Day (FT)
a. Day #1 =
b. Day #2 =
c. Day #3 =
6. Repair
a. The allowable leakage rate for an unlined pool structure shall not exceed 0.1 percent of the
total water volume in a 24-hour period. (Example: 0.001 x 200,000 gallon pool = 200
gallons per 24 hour period.) This excludes the loss/addition of evaporation/precipitation.
7. Absorption
a. Waiting 3 days after the initial water fill will allow the concrete to absorb water and shall
be sufficient to minimize the effect of absorption on the test results.
8. Evaporation
a. Evaporation shall not have a significant effect on natatoria that are completely enclosed
with no air circulation during the water tightness test. However, evaporation will have a
significant effect on the water level in natatoria that has air movement across the water
surface or are still partially uncovered.
9. If leaks are detected, repair the vessel and make water tight in accordance with these
requirements.
10. With regard to this test, the curing requirements, the final fill and the cost of the water for two
(2) complete fillings shall be borne by the Owner. Any subsequent fillings or partial fillings
(more than 25%) of the pool shall be by the CONTRACTOR, at its own expense.
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3.6
Center For Aquatics & Tennis
Design Development - September 13, 2013
PIPING INSTALLATION
A.
General
1. Provide and erect, according to the best practices of the trade, all piping shown on the
drawings and required for the complete installation of these systems. The piping shown on the
drawings shall be considered as diagrammatic in indicating the general run and connections,
and may or may not in all parts be shown in its true position. The piping may have to be off
set, lowered or raised as required or as directed at the site. This does not relieve the
CONTRACTOR from responsibility for the proper erection of the systems or piping in every
respect suitable for the work intended as described in the specifications and approved by the
Architect. In the erection of all piping, it shall be properly supported and proper provisions
shall be made for expansion, contraction and anchoring of piping. All piping shall be cut
accurately for fabrication to measurements established at the construction site. Pipe shall be
worked into place without springing and/or forcing, properly clearing all windows, doors, and
other openings and equipment. Cutting or other weakening of the building structure to
facilitate installation will not be permitted. All pipes shall have burrs and/or cutting slag
removed by reaming or other cleaning methods in strict accordance with the manufacturer's
instructions. All changes in direction shall be made with fittings. All open ends of pipes and
equipment shall be properly capped or plugged to keep dirt and other foreign materials out of
the systems. Plugs of rags, wool, cotton waste or similar materials will not be used in
plugging. All piping shall be arranged so as not to interfere with removal and maintenance of
equipment, filters or devices, and so as not to block access to manholes, access openings, etc.
Flanges or unions as applicable for the type of piping specified shall be provided in the piping
at connections to all items of equipment. All piping shall be installed to ensure noiseless
circulation. All valves and specialties shall be so placed to permit easy operation and access.
B.
Pipe Hangers and Supports
1. Pipes shall be adequately supported by pipe hangers and supports specified in Paragraph 2.05
Pipe, Hangers, and Valves.
2. Horizontal PVC Schedule 80 piping shall be supported in accordance with the manufacturer’s
recommendations for fluid temperature not exceeding 120 degree F and as listed below:
Nominal Pipe Size
(Inch)
Hanger Support Spacing
(Feet)
1-1/4” and less
1-1/2” to 3”
4” to 6”
8” to 12”
Greater than 12”
5
6
8
10
12
Minimum Rod Size
for
Single Rod Hanger
(Inch)
3/8”
1/2”
5/8”
7/8”
1”
3. Horizontal CPVC Schedule 80 piping shall be supported in accordance with the
manufacturer’s recommendations for fluid temperature not exceeding 140 degree F and as
listed below:
Nominal Pipe Size
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Hanger Support Spacing
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Minimum Rod Size
SWIMMING POOLS
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
(Inch)
(Feet)
½” and less *
¾” to 2”
2-1/2” to 3”
4” to 8”
Greater than 12”
4
6
7
8
10
for
Single Rod Hanger
(Inch)
3/8”
3/8”
1/2”
7/8”
1”
C.
Provide means of preventing dissimilar metal contact such as plastic coated hangers, copper
colored epoxy paint, or non adhesive isolation tape.
D.
Install hangers to provide a minimum of 1 inch space between finished covering and adjacent
work.
E.
Place a hanger within 12 inches of each horizontal elbow.
F.
Support vertical piping independently of connected horizontal piping. Support vertical pipes at
every floor. Wherever possible, locate riser clamps directly below pipe couplings or shear lugs.
G.
Where several pipes can be installed in parallel and at the same elevation, provide trapeze hangers
as specified in section 2.05.C.3. Trapeze hangers shall be spaced according to the smallest pipe
size, or install intermediate supports according to the support spacing schedules.
H.
Do not support piping from other pipes, ductwork or other equipment that is not building
structure. Do not modify building structure for hanger installation.
I.
Concrete Inserts
1. Provide inserts for placement in form work before concrete is poured.
2. Provide inserts for suspending hangers from reinforced concrete slabs and sides of reinforced
concrete beams.
3. Where concrete slabs form finished ceilings, provide inserts to be flush with the slab surface.
4. Provide hook rods to concrete reinforcement section for inserts carrying pipe over 4 inches.
J.
Pipe Hangers and Supports
1. All piping shall be rigidly supported from the building structure by means of hanger
assemblies properly selected and sized for the application in accordance with the
manufacturer's recommendations and specifications.
2. All piping in a service tunnel, if required shall be supported by a structure of the
CONTRACTOR’S design. The structure shall be non-corrodible and shall be of a size and
configuration to rigidly support all the piping as shown in the plans at a minimum spacing as
shown below.
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Center For Aquatics & Tennis
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3. Piping hangers shall be spaced per the below schedule and shall have hangers not more than
one foot on each side of every change in direction. The piping systems shall be installed in an
approved manner and shall not overload the building structural frame. The CONTRACTOR
shall provide additional hangers and miscellaneous steel supports as required to distribute the
piping system load over several structural members where required or directed. Maximum
allowable spacing for piping shall be as follows:
PVC Piping
3/4" thru 2"
2 1/2" thru 4”
6" thru 10"
12” thru 14"
Maximum Spacing
5'-0"
6'-0"
9'-0"
12’-0”
4. Round rods supporting the pipe hangers shall be of the following dimensions:
1/2" to 2" pipe
2-1/2" to 3" pipe
4" to 5" pipe
6" pipe
-3/8" rod
-1/2" rod
-5/8" rod
-3/4" rod
5. Hanger rods shall be galvanized steel. Provide for controlling level and slope by turn buckles
or other approved means of adjustment and incorporate lock nuts.
6. Where piping is installed side by side, the CONTRACTOR will support the piping by utilizing
trapeze type hanger assemblies. Horizontal trapeze member shall be non-metallic channel.
The CONTRACTOR shall provide heavier members as required for the load to be supported
for the entire span distance. Hanger rods shall be as specified above and properly sized for the
load supported, but not less than 5/8 inches diameter.
7. The use of pipe hooks, chains, or perforated iron for pipe hanger supports will not be
permitted.
8. Attachment of piping hangers to the building structure shall be provided in a manner approved
by the Architect. The CONTRACTOR shall provide concrete inserts to be installed by the
General Contractor in the building construction at the time the concrete is poured and hangers
shall be attached to these inserts.
K. Piping Installation
1. Trench bottoms shall be smooth and free of rocks and debris. If the trench is dug in ledge
rock, hardpan or where large boulders are not removed, place 3 inches of sand or compacted
fine-grained soil below pipe. Pipe must be supported over its entire length with firm, stable
material. Blocking will not be used to change pipe grade or provide intermittent support over
low sections in the trench. Surround the pipe with backfill meeting the requirements of
Section 312000 with a particle size of 1-1/2 inch or less and in accordance with the project
geotechnical report. Compact in layers not to exceed 6 inches with vibratory method. Follow
installation methods of ASTM D2774 "Underground Installation of Thermoplastic Pressure
Piping".
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
2. Installations are to be installed in a straight run of pipe, with a minimum 10 pipe diameters
upstream and minimum 5 pipe diameters downstream of any pipe fitting.
L.
Flushing, Draining and Cleaning Pipe Systems
1. The CONTRACTOR shall flush out all water systems with water before placing them in
operation. Other systems shall be cleaned by using compressed air or nitrogen. After systems
are in operation and during the test period, all strainer screens shall be removed and thoroughly
cleaned.
M. Expansion and Contraction
1. The CONTRACTOR shall make all necessary provisions for expansion and contraction of
piping with offsets, loops, flexible connections and anchors as required to prevent undue
strain. The CONTRACTOR shall provide shop drawings for proposed method and
arrangement for control of expansion and contraction of piping.
N.
Testing
1. All piping installation and pressure testing shall be reviewed by the Owner’s testing agency
before commencement of backfilling. A minimum notice of one (1) week is required prior to
review. Results of review shall be documented.
2. All pool related piping, shall be hydraulically pressure tested (with water, not air) to a pressure
of not less than 50 PSI for a period of no less than two (2) hours.
3. Contractor is responsible for the maintenance of a sustained 20 PSI pressure on all pool related
piping throughout the course of construction.
4. The Contractor shall adhere to the applicable provisions of Division 22 - Plumbing, "General
Provisions" and "Basic Materials and Methods" for installation of piping system.
3.7
EQUIPMENT AND SYSTEMS INSTALLATION
A.
The CONTRACTOR shall assemble and install all equipment, special parts and accessories as
shown on pool drawings, specifications and shop drawings of the equipment suppliers.
B.
The CONTRACTOR shall provide all anchors and inserts to be imbedded in the deck including
all fittings, inserts and structure sleeves and required anchorage as shown on the plans and as
indicated in this section of the specifications. Equipment shall be set true and plumb, using
factory jigs where available. Removable equipment items shall be easily removable from anchors
and shall fit without noticeable wobble.
C.
Provide templates for all equipment anchors. Provide anchor bolts of the size and spacing as
required by the equipment manufacturer. All anchor bolts shall be stainless steel Type 316L and
of a length capable of adequate anchorage into rough slab-on-grade allowing for finish deck tile
and setting bed. Anchors shall be set and cast into place during building concrete work. Inspect
all anchor settings for horizontal and vertical alignment prior to placing concrete.
D.
The CONTRACTOR shall install all equipment and systems in accordance with manufacturer's
directions. Equipment shall all be assembled and in place for final observation.
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Flagstaff, AZ
E.
3.8
Center For Aquatics & Tennis
Design Development - September 13, 2013
All items necessary to complete this section are shown on the plans or described in the
specifications including items that may be purchased by the Owner. Items are detailed and
specified as a guide for dimensional purposes. The CONTRACTOR must make provisions
accordingly and submit shop drawings and submittals based on that data.
START-UP AND INSTRUCTION
A.
The CONTRACTOR shall supply the services of an experienced swimming pool
operator/instructor for a period of not less than two days (total 16 hours) after the pool(s) have
been filled and initially placed in operation. During this period, the Owner's representatives who
will be operating the pool(s) shall be thoroughly instructed in all phases of the pool's operation.
The CONTRACTOR shall deliver six (6) complete sets of operating and maintenance instructions
for the swimming pool, structures, finishes and all component equipment. Prior to leaving the job,
the CONTRACTOR shall obtain written certification from the designated Owner's representative
acknowledging that the instruction period has been completed and all necessary operating
information provided. The CONTRACTOR shall, in his contract, include the cost of two (2)
additional days (total 16 hours) of instruction and operational check out by the qualified representative of the CONTRACTOR during the first season of operation.
B.
Written reports of each of these visits outlining the pool's operation, competence and performance
of the pool's operation personnel, and other pertinent comments shall be submitted to the Owner
and Architect/Engineer within one (1) week after each visit.
C.
The CONTRACTOR shall provide specific written procedures to be followed for emptying and
refilling the pool as mentioned previously in this section. The procedures must be included in the
bound volume of operating instructions and references in the front index with a note headed by
the words: "CAUTION -- VERY IMPORTANT".
END OF SECTION 131100
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Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
SECTION 131101
SWIMMING POOL CAST-IN-PLACE CONCRETE
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
SUMMARY
A.
Section includes cast-in-place concrete, including formwork, reinforcement, concrete
materials, mixture design, placement procedures, and finishes, for the following:
1.
2.
B.
Swimming pools.
Surge tanks.
Related Sections:
1.
Division 31 Section "Earth Moving" for drainage fill under slabs-on-grade.
a.
1.3
DEFINITIONS
A.
1.4
Drainage Course under base slabs: Narrowly graded mixture of frostfree, washed crushed stone, or crushed or uncrushed gravel;
ASTM D 448; coarse-aggregate grading Size 57; with 100 percent
passing a 1-1/2-inch (37.5-mm) sieve and 0 to 5 percent passing a No. 8
(2.36-mm) sieve.
Cementitious Materials: Portland cement alone, or in combination with fly ash; subject
to compliance with requirements.
SUBMITTALS
A.
Product Data: For each type of product indicated.
B.
Design Mixtures: For each concrete mixture. Submit alternate design mixtures when
characteristics of materials, Project conditions, weather, test results, or other
circumstances warrant adjustments.
1.
C.
Indicate amounts of mixing water to be withheld for later addition at Project site.
Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending,
and placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing,
bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie
spacing, hoop spacing, and supports for concrete reinforcement.
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Northern Arizona University
Flagstaff, AZ
D.
Formwork Shop Drawings: Prepared by or under the supervision of a qualified
professional engineer detailing fabrication, assembly, and support of formwork.
1.
E.
Shoring and Reshoring: Indicate proposed schedule and sequence of stripping
formwork, shoring removal, and reshoring installation and removal.
Construction Joint Layout: Indicate proposed construction joints required to construct
the structure.
1.
Location of construction joints is subject to approval of the Architect.
F.
Samples: For waterstops.
G.
Qualification Data: For manufacturer.
H.
Material Certificates: For each of the following, signed by manufacturers:
1.
2.
3.
4.
5.
6.
7.
8.
9.
I.
Cementitious materials.
Admixtures.
Form materials and form-release agents.
Steel reinforcement and accessories.
Waterstops.
Curing compounds.
Bonding agents.
Adhesives.
Repair materials.
Material Test Reports: For the following, from a qualified testing agency, indicating
compliance with requirements:
1.
1.5
Center For Aquatics & Tennis
Design Development - September 13, 2013
Aggregates. Include service record data indicating absence of deleterious
expansion of concrete due to alkali aggregate reactivity.
J.
Field quality-control reports.
K.
Minutes of preinstallation conference.
QUALITY ASSURANCE
A.
Installer Qualifications: A qualified installer who employs on Project personnel qualified
as ACI-certified Flatwork Technician and Finisher and a supervisor who is an ACIcertified Concrete Flatwork Technician.
B.
Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete
products and that complies with ASTM C 94/C 94M requirements for production
facilities and equipment.
1.
NAU Proj. #09.860.131
Manufacturer certified according to NRMCA's "Certification of Ready Mixed
Concrete Production Facilities."
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Center For Aquatics & Tennis
Design Development - September 13, 2013
C.
Source Limitations: Obtain each type or class of cementitious material of the same brand
from the same manufacturer's plant, obtain aggregate from single source, and obtain
admixtures from single source from single manufacturer.
D.
ACI Publications: Comply with the following unless modified by requirements in the
Contract Documents:
1.
2.
E.
ACI 301, "Specifications for Structural Concrete," Sections 1 through 5.
ACI 117, "Specifications for Tolerances for Concrete Construction and
Materials."
Preinstallation Conference: Conduct conference at Project site.
1.
Before submitting design mixtures, review concrete design mixture and examine
procedures for ensuring quality of concrete materials. Require representatives of
each entity directly concerned with cast-in-place concrete to attend, including the
following:
a.
b.
c.
d.
e.
2.
1.6
Contractor's superintendent.
Independent testing agency responsible for concrete design mixtures.
Ready-mix concrete manufacturer.
Concrete subcontractor.
Pool finish subcontractor.
Review special inspection and testing and inspecting agency procedures for field
quality control, concrete finishes and finishing, cold- and hot-weather concreting
procedures, curing procedures, forms and form removal limitations, shoring and
reshoring procedures, steel reinforcement installation, concrete repair procedures,
and concrete protection.
DELIVERY, STORAGE, AND HANDLING
A.
Steel Reinforcement: Deliver, store, and handle steel reinforcement to prevent bending
and damage.
B.
Waterstops: Store waterstops under cover to protect from moisture, sunlight, dirt, oil,
and other contaminants.
PART 2 - PRODUCTS
2.1
FORM-FACING MATERIALS
A.
Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous,
true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize
number of joints.
1.
Exterior-grade plywood panels, suitable for concrete forms, complying with
DOC PS 1, and as follows:
a.
NAU Proj. #09.860.131
Medium-density overlay, Class 1 or better; mill-release agent treated and
edge sealed.
131101 - 3
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
B.
Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved
material. Provide lumber dressed on at least two edges and one side for tight fit.
C.
Void Forms: Biodegradable paper surface, treated for moisture resistance, structurally
sufficient to support weight of plastic concrete and other superimposed loads. See
drawings for locations and applicability.
D.
Chamfer Strips: Wood, metal, PVC, or rubber strips, 3/4 by 3/4 inch (19 by 19 mm),
minimum.
E.
Rustication Strips: Wood, metal, PVC, or rubber strips, kerfed for ease of form removal.
F.
Form-Release Agent: Commercially formulated form-release agent that will not bond
with, stain, or adversely affect concrete surfaces and will not impair subsequent
treatments of concrete surfaces.
1.
G.
2.
3.
Furnish units that will leave no corrodible metal closer than 1 inch (25 mm) to
the plane of exposed concrete surface.
Furnish ties that, when removed, will leave holes no larger than 1 inch (25 mm)
in diameter in concrete surface.
Furnish ties with integral water-barrier plates to walls indicated to receive
dampproofing or waterproofing.
STEEL REINFORCEMENT
A.
2.3
Formulate form-release agent with rust inhibitor for steel form-facing materials.
Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced
plastic form ties designed to resist lateral pressure of fresh concrete on forms and to
prevent spalling of concrete on removal.
1.
2.2
Center For Aquatics & Tennis
Design Development - September 13, 2013
Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.
REINFORCEMENT ACCESSORIES
A.
Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and
fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar
supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of
Standard Practice," of greater compressive strength than concrete and as follows:
1.
B.
For concrete surfaces exposed to view where legs of wire bar supports contact
forms, use CRSI Class 1 plastic-protected steel wire or CRSI Class 2 stainlesssteel bar supports.
Dowel Bar Substitutes: Tapered, threaded couplers, pre-assembled to reinforcing with
mounting plate for attachment to form work and a pressed in metal disc thread protector
which can be easily removed. The mechanical connection shall meet building code
requirements of developing in tension or compression. The mechanical connection shall
be the positive locking, taper threaded type coupler manufactured from high quality steel.
The bar ends must be taper threaded using the manufacturer’s requirements.
1.
NAU Proj. #09.860.131
Lenton Form Saver; Erico Corp.
131101 - 4
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
2.4
Center For Aquatics & Tennis
Design Development - September 13, 2013
CONCRETE MATERIALS
A.
Cementitious Material: Use the following cementitious materials, of the same type,
brand, and source, throughout Project:
1.
Portland Cement:
following:
a.
B.
2.5
Fly Ash: ASTM C 618, Class F or C.
Maximum Coarse-Aggregate Size: 1 inch (25 mm) nominal.
Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.
Water: ASTM C 94/C 94M and potable.
ADMIXTURES
A.
Air-Entraining Admixture: ASTM C 260.
B.
Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible
with other admixtures and that will not contribute water-soluble chloride ions exceeding
those permitted in hardened concrete. Do not use calcium chloride or admixtures
containing calcium chloride.
1.
2.
3.
4.
5.
6.
2.6
Supplement with the
Normal-Weight Aggregates: ASTM C 33, Class 3S coarse aggregate or better, graded.
Provide aggregates from a single source with documented service record data of at least
10 years' satisfactory service in similar applications and service conditions using similar
aggregates and cementitious materials.
1.
2.
C.
ASTM C 150, Type I/II, gray.
Water-Reducing Admixture: ASTM C 494/C 494M, Type A.
Retarding Admixture: ASTM C 494/C 494M, Type B.
Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D.
High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.
High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M,
Type G.
Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.
WATERSTOPS
A.
Flexible PVC Waterstops: CE CRD-C 572, with factory-installed metal eyelets, for
embedding in concrete to prevent passage of fluids through joints. Factory fabricate
corners, intersections, and directional changes.
1.
Manufacturers:
Subject to compliance with requirements, available
manufacturers offering products that may be incorporated into the Work include,
but are not limited to, the following:
a.
b.
c.
d.
NAU Proj. #09.860.131
BoMetals, Inc.
Greenstreak.
Paul Murphy Plastics Company.
Vinylex Corp.
131101 - 5
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
2.
3.
B.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Profile: Ribbed without center bulb.
Dimensions: 4 inches by 3/16 inch thick (100 mm by 4.75 mm thick);
nontapered.
Non-Expanding Plastic Adhesive Waterstops: Manufactured rectangular or trapezoidal
strip, single-component, self-sealing adhesive compount, for adhesive bonding to
concrete, 5/8 by 1-1/2 inch.
1.
Products: Subject to compliance with requirements, provide the following:
a.
Synko-Flex SF302, Henry Company.
1)
2.7
Synko-Flex SF311 Solvent Based Primer.
CURING MATERIALS
A.
Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for
application to fresh concrete.
1.
Products: Subject to compliance with requirements, available products that may
be incorporated into the Work include, but are not limited to, the following:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
r.
s.
Axim Italcementi Group, Inc.; CATEXOL CimFilm.
BASF Construction Chemicals - Building Systems; Confilm.
ChemMasters; SprayFilm.
Conspec by Dayton Superior; Aquafilm.
Dayton Superior Corporation; Sure Film (J-74).
Edoco by Dayton Superior; BurkeFilm.
Euclid Chemical Company (The), an RPM company; Eucobar.
Kaufman Products, Inc.; Vapor-Aid.
Lambert Corporation; LAMBCO Skin.
L&M Construction Chemicals, Inc.; E-CON.
Meadows, W. R., Inc.; EVAPRE.
Metalcrete Industries; Waterhold.
Nox-Crete Products Group; MONOFILM.
Sika Corporation; SikaFilm.
SpecChem, LLC; Spec Film.
Symons by Dayton Superior; Finishing Aid.
TK Products, Division of Sierra Corporation; TK-2120 TRI-FILM.
Unitex; PRO-FILM.
Vexcon Chemicals, Inc.; Certi-Vex Envio Set.
B.
Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf,
weighing approximately 9 oz./sq. yd. (305 g/sq. m) when dry.
C.
Moisture-Retaining Cover:
polyethylene sheet.
D.
Water: Potable.
NAU Proj. #09.860.131
ASTM C 171, polyethylene film or white burlap-
131101 - 6
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
E.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1,
Class B, 18 to 25 percent solids, nondissipating, certified by curing compound
manufacturer to not interfere with bonding of pool finish.
1.
Products: Subject to compliance with requirements, available products that may
be incorporated into the Work include, but are not limited to, the following:
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
2.8
RELATED MATERIALS
A.
Epoxy Bonding Adhesive: ASTM C 881, two-component epoxy resin, capable of humid
curing and bonding to damp surfaces, of class suitable for application temperature and of
grade to suit requirements, and as follows:
1.
2.9
Types I and II, non-load bearing, for bonding hardened or freshly mixed concrete
to hardened concrete.
REPAIR MATERIALS
A.
Concrete Patching Mortar, Repair Underlayment and Repair Topping:
treatment for waterproofing concrete.
1.
Chemical
Xypex Concrete Waterproofing by Crystallization, Xypex Chemical Corporation.
a.
2.10
BASF Construction Chemicals - Building Systems; Kure-N-Seal W.
ChemMasters; Safe-Cure Clear.
Conspec by Dayton Superior; High Seal.
Dayton Superior Corporation; Safe Cure and Seal (J-19).
Edoco by Dayton Superior; Spartan Cote WB II 20 Percent.
Euclid Chemical Company (The), an RPM company; Diamond
Clear VOX; Clearseal WB STD.
Kaufman Products, Inc.; SureCure Emulsion.
Lambert Corporation; Glazecote Sealer-20.
L&M Construction Chemicals, Inc.; Dress & Seal WB.
Meadows, W. R., Inc.; Vocomp-20.
Metalcrete Industries; Metcure 0800.
Nox-Crete Products Group; Cure & Seal 200E.
Symons by Dayton Superior; Cure & Seal 18 Percent E.
Vexcon Chemicals, Inc.; Starseal 0800.
Xypex Concentrate.
CONCRETE MIXTURES, GENERAL
A.
Prepare design mixtures for each type and strength of concrete, proportioned on the basis
of laboratory trial mixture or field test data, or both, according to ACI 301.
1.
B.
Use a qualified independent testing agency for preparing and reporting proposed
mixture designs based on laboratory trial mixtures.
Cementitious Materials: Limit percentage, by weight, of cementitious materials other
than portland cement in concrete as follows:
NAU Proj. #09.860.131
131101 - 7
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
1.
Limit water-soluble, chloride-ion content in hardened concrete to 0.15 percent by weight
of cement.
D.
Admixtures: Use admixtures according to manufacturer's written instructions.
2.
3.
All Concrete: Proportion normal-weight concrete mixture as follows:
1.
2.
3.
4.
5.
Minimum Compressive Strength: 4000 psi (27.6 MPa) at 28 days.
Maximum Water-Cementitious Materials Ratio: 0.42.
Minimum Cementitious Materials Content: 600 lb/cu. Yd.
Slump Limit: 4 inches (100 mm) or 8 inches (200 mm) for concrete with verified
slump of 2 to 4 inches (50 to 100 mm) before adding high-range water-reducing
admixture or plasticizing admixture, plus or minus 1 inch (25 mm).
Air Content: 6 percent, plus or minus 1.5 percent at point of delivery for 1-inch
(25-mm) nominal maximum aggregate size.
FABRICATING REINFORCEMENT
A.
2.13
Use water-reducing or plasticizing admixture in concrete, as required, for
placement and workability.
Use water-reducing and retarding admixture when required by high temperatures,
low humidity, or other adverse placement conditions.
Use water-reducing admixture in pumped concrete, and concrete with a watercementitious materials ratio below 0.50.
CONCRETE MIXTURES FOR SWIMMING POOL ELEMENTS
A.
2.12
Fly Ash: 25 percent.
C.
1.
2.11
Center For Aquatics & Tennis
Design Development - September 13, 2013
Fabricate steel reinforcement according to CRSI's "Manual of Standard Practice."
CONCRETE MIXING
A.
Ready-Mixed Concrete: Measure, batch, mix, and deliver concrete according to
ASTM C 94/C 94M, and furnish batch ticket information.
1.
When air temperature is between 85 and 90 deg F (30 and 32 deg C), reduce
mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature
is above 90 deg F (32 deg C), reduce mixing and delivery time to 60 minutes.
PART 3 - EXECUTION
3.1
FORMWORK
A.
Design, erect, shore, brace, and maintain formwork, according to ACI 301, to support
vertical, lateral, static, and dynamic loads, and construction loads that might be applied,
until structure can support such loads.
B.
Construct formwork so concrete members and structures are of size, shape, alignment,
elevation, and position indicated, within tolerance limits of ACI 117.
NAU Proj. #09.860.131
131101 - 8
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
C.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Limit concrete surface irregularities, designated by ACI 347 as abrupt or gradual, as
follows:
1.
2.
Class A, 1/8 inch (3.2 mm) for smooth-formed finished surfaces.
Class D, 1 inch (25 mm) for rough-formed finished surfaces.
D.
Construct forms tight enough to prevent loss of concrete mortar.
E.
Fabricate forms for easy removal without hammering or prying against concrete surfaces.
Provide crush or wrecking plates where stripping may damage cast concrete surfaces.
Provide top forms for inclined surfaces steeper than 1.5 horizontal to 1 vertical.
1.
2.
Install recesses, pipe sleeves and the like, for easy removal.
Do not use rust-stained steel form-facing material.
F.
Set edge forms, bulkheads, and intermediate screed strips for slabs to achieve required
elevations and slopes in finished concrete surfaces. Provide and secure units to support
screed strips; use strike-off templates or compacting-type screeds.
G.
Provide temporary openings for cleanouts and inspection ports where interior area of
formwork is inaccessible. Close openings with panels tightly fitted to forms and securely
braced to prevent loss of concrete mortar. Locate temporary openings in forms at
inconspicuous locations.
H.
Chamfer exterior corners and edges of permanently exposed concrete.
I. Form openings, chases, offsets, sinkages, keyways, reglets, blocking, screeds, and bulkheads
required in the Work. Determine sizes and locations from trades providing such items.
J.Clean forms and adjacent surfaces to receive concrete. Remove chips, wood, sawdust, dirt, and
other debris just before placing concrete.
3.2
K.
Retighten forms and bracing before placing concrete, as required, to prevent mortar leaks
and maintain proper alignment.
L.
Coat contact surfaces of forms with form-release agent, according to manufacturer's
written instructions, before placing reinforcement.
EMBEDDED ITEMS
A.
3.3
Place and secure anchorage devices and other embedded items required for adjoining
work that is attached to or supported by cast-in-place concrete. Use setting drawings,
templates, diagrams, instructions, and directions furnished with items to be embedded.
REMOVING AND REUSING FORMS
A.
General: Formwork for sides of beams, walls, columns, and similar parts of the Work
that does not support weight of concrete may be removed after cumulatively curing at not
less than 50 deg F (10 deg C) for 24 hours after placing concrete. Concrete has to be hard
enough to not be damaged by form-removal operations and curing and protection
operations need to be maintained.
NAU Proj. #09.860.131
131101 - 9
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
1.
2.
3.4
Clean and repair surfaces of forms to be reused in the Work. Split, frayed, delaminated,
or otherwise damaged form-facing material will not be acceptable for exposed surfaces.
Apply new form-release agent.
C.
When forms are reused, clean surfaces, remove fins and laitance, and tighten to close
joints. Align and secure joints to avoid offsets. Do not use patched forms for exposed
concrete surfaces unless approved by Architect.
SHORES AND RESHORES
Comply with ACI 318 (ACI 318M) and ACI 301 for design, installation, and removal of
shoring and reshoring.
1.
B.
3.6
Leave formwork for beam soffits, joists, slabs, and other structural elements that
supports weight of concrete in place until concrete has achieved at least 70
percent of its 28-day design compressive strength.
Remove forms only if shores have been arranged to permit removal of forms
without loosening or disturbing shores.
B.
A.
3.5
Center For Aquatics & Tennis
Design Development - September 13, 2013
Do not remove shoring or reshoring until measurement of slab tolerances is
complete.
Plan sequence of removal of shores and reshore to avoid damage to concrete. Locate and
provide adequate reshoring to support construction without excessive stress or deflection.
STEEL REINFORCEMENT
A.
General: Comply with CRSI's "Manual of Standard Practice" for placing reinforcement.
B.
Clean reinforcement of loose rust and mill scale, earth, ice, and other foreign materials
that would reduce bond to concrete.
C.
Accurately position, support, and secure reinforcement against displacement. Locate and
support reinforcement with bar supports to maintain minimum concrete cover. Do not
tack weld crossing reinforcing bars.
D.
Set wire ties with ends directed into concrete, not toward exposed concrete surfaces.
JOINTS
A.
General: Construct joints true to line with faces perpendicular to surface plane of
concrete.
B.
Construction Joints: Install so strength and appearance of concrete are not impaired, at
locations indicated or as approved by Architect.
1.
2.
NAU Proj. #09.860.131
Place joints perpendicular to main reinforcement. Continue reinforcement across
construction joints unless otherwise indicated. Do not continue reinforcement
through sides of strip placements of floors and slabs.
Form keyed joints as indicated. Embed keys at least 1-1/2 inches (38 mm) into
concrete.
131101 - 10
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
3.
4.
5.
C.
3.7
3.8
Center For Aquatics & Tennis
Design Development - September 13, 2013
Locate horizontal joints in walls and columns at underside of floors, slabs,
beams, and girders and at the top of footings or floor slabs.
Vertical joints in walls shall be located at corners, and in concealed locations
where possible.
Use epoxy-bonding adhesive at locations where fresh concrete is placed against
hardened or partially hardened concrete surfaces.
Contraction Joints in Slabs-on-Grade: No contraction joints shall be placed in pool
bottom slab.
WATERSTOPS
A.
Install waterstop types as shown in drawings. Contractor’s option for waterstop type not
shown or indicated on drawings.
B.
Flexible Waterstops: Install in construction joints and at other joints indicated to form a
continuous diaphragm. Install in longest lengths practicable. Support and protect
exposed waterstops during progress of the Work. Field fabricate joints in waterstops
according to manufacturer's written instructions.
C.
Non-Expanding Strip Waterstops: Install in construction joints and at other locations
indicated, according to manufacturer's written instructions, adhesive bonding,
mechanically fastening, and firmly pressing into place. Install in longest lengths
practicable.
CONCRETE PLACEMENT
A.
Before placing concrete, verify that installation of formwork, reinforcement, and
embedded items is complete and that required inspections have been performed.
B.
Before test sampling and placing concrete, water may be added at Project site, subject to
limitations of ACI 301.
1.
C.
Do not add water to concrete after adding high-range water-reducing admixtures
to mixture.
Deposit concrete continuously in one layer or in horizontal layers of such thickness that
no new concrete will be placed on concrete that has hardened enough to cause seams or
planes of weakness. If a section cannot be placed continuously, provide construction
joints as indicated. Deposit concrete to avoid segregation.
1.
2.
3.
NAU Proj. #09.860.131
Deposit concrete in horizontal layers of depth to not exceed formwork design
pressures and in a manner to avoid inclined construction joints.
Consolidate placed concrete with mechanical vibrating equipment according to
ACI 301.
Do not use vibrators to transport concrete inside forms. Insert and withdraw
vibrators vertically at uniformly spaced locations to rapidly penetrate placed
layer and at least 6 inches (150 mm) into preceding layer. Do not insert vibrators
into lower layers of concrete that have begun to lose plasticity. At each insertion,
limit duration of vibration to time necessary to consolidate concrete and complete
131101 - 11
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
embedment of reinforcement and other embedded items without causing mixture
constituents to segregate.
D.
Deposit and consolidate concrete for floors and slabs in a continuous operation, within
limits of construction joints, until placement of a panel or section is complete.
1.
2.
3.
4.
5.
E.
Cold-Weather Placement: Comply with ACI 306.1 and as follows. Protect concrete
work from physical damage or reduced strength that could be caused by frost, freezing
actions, or low temperatures.
1.
2.
3.
F.
When average high and low temperature is expected to fall below 40 deg F (4.4
deg C) for three successive days, maintain delivered concrete mixture
temperature within the temperature range required by ACI 301.
Do not use frozen materials or materials containing ice or snow. Do not place
concrete on frozen subgrade or on subgrade containing frozen materials.
Do not use calcium chloride, salt, or other materials containing antifreeze agents
or chemical accelerators unless otherwise specified and approved in mixture
designs.
Hot-Weather Placement: Comply with ACI 301 and as follows:
1.
2.
3.9
Consolidate concrete during placement operations so concrete is thoroughly
worked around reinforcement and other embedded items and into corners.
Maintain reinforcement in position on chairs during concrete placement.
Screed slab surfaces with a straightedge and strike off to correct elevations.
Slope surfaces uniformly to drains where required.
Begin initial floating using bull floats or darbies to form a uniform and opentextured surface plane, before excess bleedwater appears on the surface. Do not
further disturb slab surfaces before starting finishing operations.
Maintain concrete temperature below 90 deg F (32 deg C) at time of placement.
Chilled mixing water or chopped ice may be used to control temperature,
provided water equivalent of ice is calculated to total amount of mixing water.
Using liquid nitrogen to cool concrete is Contractor's option.
Fog-spray forms, steel reinforcement, and subgrade just before placing concrete.
Keep subgrade uniformly moist without standing water, soft spots, or dry areas.
FINISHING FORMED SURFACES
A.
Rough-Formed Finish: As-cast concrete texture imparted by form-facing material with
tie holes and defects repaired and patched. Remove fins and other projections that
exceed specified limits on formed-surface irregularities.
1.
B.
Apply to concrete surfaces not exposed to public view.
Smooth-Formed Finish: As-cast concrete texture imparted by form-facing material,
arranged in an orderly and symmetrical manner with a minimum of seams. Repair and
patch tie holes and defects. Remove fins and other projections that exceed specified
limits on formed-surface irregularities.
NAU Proj. #09.860.131
131101 - 12
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
1.
C.
3.10
Apply to concrete surfaces exposed to public view, to receive a rubbed finish and
to be covered with a coating or finish material applied over concrete.
Rubbed Finish: Apply the following to smooth-formed finished as-cast concrete for all
pool and tank walls:
1.
D.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Smooth-Rubbed Finish: Not later than one day after form removal, moisten
concrete surfaces and rub with carborundum brick or another abrasive until
producing a uniform color and texture. Do not apply cement grout other than
that created by the rubbing process.
Related Unformed Surfaces: At tops of walls, horizontal offsets, and similar unformed
surfaces adjacent to formed surfaces, strike off smooth and finish with a texture matching
adjacent formed surfaces. Continue final surface treatment of formed surfaces uniformly
across adjacent unformed surfaces unless otherwise indicated.
FINISHING SLABS
A.
General: Comply with ACI 302.1R recommendations for screeding, restraightening, and
finishing operations for concrete surfaces. Do not wet concrete surfaces.
B.
Float Finish: Consolidate surface with power-driven floats or by hand floating if area is
small or inaccessible to power driven floats. Restraighten, cut down high spots, and fill
low spots. Repeat float passes and restraightening until surface is left with a uniform,
smooth, granular texture.
1.
C.
Apply float finish to surfaces to receive trowel finish.
Trowel Finish: After applying float finish, apply first troweling and consolidate concrete
by hand or power-driven trowel. Continue troweling passes and restraighten until surface
is free of trowel marks and uniform in texture and appearance. Grind smooth any surface
defects that would telegraph through applied coatings or floor coverings.
1.
2.
Apply a trowel finish to surfaces exposed to view or to be covered with ceramic
tile , paint, or another thin-film-finish coating system.
Finish surfaces to the following tolerances, according to ASTM E 1155
(ASTM E 1155M), for a randomly trafficked floor surface:
a.
3.11
Specified overall values of flatness, F(F) 25; and of levelness, F(L) 20;
with minimum local values of flatness, F(F) 17; and of levelness,
F(L) 15.
MISCELLANEOUS CONCRETE ITEMS
A.
Filling In: Fill in holes and openings left in concrete structures after work of other trades
is in place unless otherwise indicated. Mix, place, and cure concrete, as specified, to
blend with in-place construction. Provide other miscellaneous concrete filling indicated
or required to complete the Work.
NAU Proj. #09.860.131
131101 - 13
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
3.12
Center For Aquatics & Tennis
Design Development - September 13, 2013
CONCRETE PROTECTING AND CURING
A.
General: Protect freshly placed concrete from premature drying and excessive cold or
hot temperatures. Comply with ACI 306.1 for cold-weather protection and ACI 301 for
hot-weather protection during curing.
B.
Evaporation Retarder: Apply evaporation retarder to unformed concrete surfaces if hot,
dry, or windy conditions cause moisture loss approaching 0.2 lb/sq. ft. x h (1 kg/sq. m x
h) before and during finishing operations. Apply according to manufacturer's written
instructions after placing, screeding, and bull floating or darbying concrete, but before
float finishing.
C.
Formed Surfaces: Cure formed concrete surfaces, including underside of beams,
supported slabs, and other similar surfaces. If forms remain during curing period, moist
cure after loosening forms. If removing forms before end of curing period, continue
curing for the remainder of the curing period.
D.
Unformed Surfaces: Begin curing immediately after finishing concrete. Cure unformed
surfaces, including floors and slabs, concrete floor toppings, and other surfaces.
E.
Cure concrete according to ACI 308.1, by one or a combination of the following
methods:
1.
Curing Compound: Apply uniformly in continuous operation by power spray or
roller according to manufacturer's written instructions. Recoat areas subjected to
heavy rainfall within three hours after initial application. Maintain continuity of
coating and repair damage during curing period.
a.
3.13
Removal: After curing period has elapsed, remove curing compound
without damaging concrete surfaces by method recommended by curing
compound manufacturer unless manufacturer certifies curing compound
will not interfere with bonding of pool finish used on Project.
CONCRETE SURFACE REPAIRS
A.
Defective Concrete: Repair and patch defective areas when approved by Architect.
Remove and replace concrete that cannot be repaired and patched to Architect's approval.
B.
Patching Mortar:
recommendations.
C.
Repairing Formed Surfaces: Surface defects include color and texture irregularities,
cracks, spalls, air bubbles, honeycombs, rock pockets, fins and other projections on the
surface, and stains and other discolorations that cannot be removed by cleaning.
1.
NAU Proj. #09.860.131
Mix patching mortar, per manufacturer’s instructions and
Immediately after form removal, cut out honeycombs, rock pockets, and voids
more than 1/2 inch (13 mm) in any dimension to solid concrete. Limit cut depth
to 3/4 inch (19 mm). Make edges of cuts perpendicular to concrete surface. Fill
and compact with patching mortar per manufacturer’s recommendations. Fill
form-tie voids with patching mortar or cone plugs secured in place with bonding
agent.
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SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
2.
3.
D.
Repair defects on surfaces exposed to view per manufacturer’s recommendations
tol match surrounding color. Patch a test area at inconspicuous locations to
verify mixture and color match before proceeding with patching. Compact
mortar in place and strike off slightly higher than surrounding surface.
Repair defects on concealed formed surfaces that affect concrete's durability and
structural performance as determined by Architect.
Repairing Unformed Surfaces: Test unformed surfaces, such as floors and slabs, for
finish and verify surface tolerances specified for each surface. Correct low and high
areas. Test surfaces sloped to drain for trueness of slope and smoothness; use a sloped
template.
1.
2.
3.
4.
5.
6.
7.
3.14
Center For Aquatics & Tennis
Design Development - September 13, 2013
Repair finished surfaces containing defects. Surface defects include spalls,
popouts, honeycombs, rock pockets, crazing and cracks in excess of 0.01 inch
(0.25 mm) wide or that penetrate to reinforcement or completely through
unreinforced sections regardless of width, and other objectionable conditions.
After concrete has cured at least 14 days, correct high areas by grinding.
Correct localized low areas during or immediately after completing surface
finishing operations by cutting out low areas and replacing with patching mortar.
Finish repaired areas to blend into adjacent concrete.
Correct other low areas with a repair underlayment. Prepare, mix, and apply
repair underlayment and primer according to manufacturer's written instructions
to produce a smooth, uniform, plane, and level surface. Feather edges to match
adjacent floor elevations.
Correct other low areas scheduled to remain exposed with a repair topping. Cut
out low areas to ensure a minimum repair topping depth of 1/4 inch (6 mm) to
match adjacent floor elevations. Prepare, mix, and apply repair topping and
primer according to manufacturer's written instructions to produce a smooth,
uniform, plane, and level surface.
Repair defective areas, except random cracks and single holes 1 inch (25 mm) or
less in diameter, by cutting out and replacing with patching mortar. Remove
defective areas with clean, square cuts and expose steel reinforcement with at
least a 3/4-inch (19-mm) clearance all around. Mix and place patching concrete
per manufacturer’s instructions. Place, compact, and finish to blend with
adjacent finished concrete. Cure in same manner as adjacent concrete.
Repair random cracks and single holes 1 inch (25 mm) or less in diameter with
patching mortar. Groove top of cracks and cut out holes to sound concrete and
clean off dust, dirt, and loose particles. Mix and place patching concrete per
manufacturer’s instructions. Place, compact, and finish to blend with adjacent
finished concrete.
E.
Perform structural repairs of concrete, subject to Architect's approval, using epoxy
adhesive and patching mortar.
F.
Repair materials and installation not specified above may be used, subject to Architect's
approval.
FIELD QUALITY CONTROL
A.
Testing and Inspecting: Owner will engage a qualified testing and inspecting agency to
perform field tests and inspections and prepare test reports.
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SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
B.
Inspections:
1.
2.
3.
4.
5.
C.
Center For Aquatics & Tennis
Design Development - September 13, 2013
Steel reinforcement placement.
Verification of use of required design mixture.
Concrete placement, including conveying and depositing.
Curing procedures and maintenance of curing temperature.
Verification of concrete strength before removal of shores and forms from beams
and slabs.
Concrete Tests: Testing of composite samples of fresh concrete obtained according to
ASTM C 172 shall be performed according to the following requirements:
1.
Testing Frequency: Obtain one composite sample for each day's pour of each
concrete mixture exceeding 5 cu. yd. (4 cu. m), but less than 25 cu. yd. (19 cu.
m), plus one set for each additional 50 cu. yd. (38 cu. m) or fraction thereof.
a.
2.
3.
4.
5.
Slump: ASTM C 143/C 143M; one test at point of placement for each composite
sample, but not less than one test for each day's pour of each concrete mixture.
Perform additional tests when concrete consistency appears to change.
Air Content: ASTM C 231, pressure method, for normal-weight concrete;one
test for each composite sample, but not less than one test for each day's pour of
each concrete mixture.
Concrete Temperature: ASTM C 1064/C 1064M; one test hourly when air
temperature is 40 deg F (4.4 deg C) and below and when 80 deg F (27 deg C) and
above, and one test for each composite sample.
Compression Test Specimens: ASTM C 31/C 31M.
a.
6.
8.
NAU Proj. #09.860.131
Cast and laboratory cure two sets of two standard cylinder specimens for
each composite sample.
Compressive-Strength Tests: ASTM C 39/C 39M; test one set of two laboratorycured specimens at 7 days and one set of two specimens at 28 days.
a.
7.
When frequency of testing will provide fewer than five compressivestrength tests for each concrete mixture, testing shall be conducted from
at least five randomly selected batches or from each batch if fewer than
five are used.
A compressive-strength test shall be the average compressive strength
from a set of two specimens obtained from same composite sample and
tested at age indicated.
Strength of each concrete mixture will be satisfactory if every average of any
three consecutive compressive-strength tests equals or exceeds specified
compressive strength and no compressive-strength test value falls below
specified compressive strength by more than 500 psi (3.4 MPa).
Test results shall be reported in writing to Architect, concrete manufacturer, and
Contractor within 48 hours of testing. Reports of compressive-strength tests shall
contain Project identification name and number, date of concrete placement,
name of concrete testing and inspecting agency, location of concrete batch in
Work, design compressive strength at 28 days, concrete mixture proportions and
131101 - 16
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
9.
10.
11.
12.
D.
3.15
Center For Aquatics & Tennis
Design Development - September 13, 2013
materials, compressive breaking strength, and type of break for both 7- and 28day tests.
Nondestructive Testing: Impact hammer, sonoscope, or other nondestructive
device may be permitted by Architect but will not be used as sole basis for
approval or rejection of concrete.
Additional Tests: Testing and inspecting agency shall make additional tests of
concrete when test results indicate that slump, air entrainment, compressive
strengths, or other requirements have not been met, as directed by Architect.
Testing and inspecting agency may conduct tests to determine adequacy of
concrete by cored cylinders complying with ASTM C 42/C 42M or by other
methods as directed by Architect.
Additional testing and inspecting, at Contractor's expense, will be performed to
determine compliance of replaced or additional work with specified
requirements.
Correct deficiencies in the Work that test reports and inspections indicate do not
comply with the Contract Documents.
Measure floor and slab flatness and levelness according to ASTM E 1155
(ASTM E 1155M) within 24 hours of finishing.
WATERTIGHTNESS TESTING
A.
Pool shall be tested for watertightness according to procedures stated in ACI 350.1-01 /
AWWA 400.
1.
2.
Preliminary Test Criteria: HST-VIO.
Quantitative Test Criteria: HST-100.
END OF SECTION 131101
NAU Proj. #09.860.131
131101 - 17
SWIMMING POOLCAST-IN-PLACE CONCRETE
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
SECTION 131102
SWIMMING POOL SHOTCRETE
PART 1 - GENERAL
1.1
RELATED DOCUMENTS
A.
1.2
Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
SUMMARY
A.
This Section includes shotcrete applied by dry-mix or wet-mix process, including
formwork, reinforcement, concrete materials, mixture design, placement procedures, and
finishes, for the following:
1.
B.
Swimming pool walls.
Related Sections include the following:
1.
2.
3.
Division 13 Section “Swimming Pools” for pool shell tolerances and other items.
Division 13 Section “Swimming Pool Cast In Place Concrete” for pool bottom
slabs and other pool-related structures.
Division 31 Section "Earth Moving" for drainage fill under swimming pools and
related structures.
a.
1.3
Drainage Course: Narrowly graded mixture of washed crushed stone, or
crushed or uncrushed gravel; ASTM D 448; coarse-aggregate grading
Size 57; with 100 percent passing a 1-1/2-inch (37.5-mm) sieve and 0 to
5 percent passing a No. 8 (2.36-mm) sieve
DEFINITIONS
A.
Shotcrete: Mortar or concrete pneumatically projected onto a surface at high velocity.
B.
Dry-Mix Shotcrete: Shotcrete with most of the water added at nozzle.
C.
Wet-Mix Shotcrete: Shotcrete with ingredients, including mixing water, mixed before
introduction into delivery hose.
D.
Cementitious Materials: Portland cement alone, or in combination with fly ash; subject
to compliance with requirements.
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SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
1.4
1.5
Center For Aquatics & Tennis
Design Development - September 13, 2013
SUBMITTALS
A.
Product Data: For manufactured materials and products including reinforcement and
forming accessories, shotcrete materials, admixtures, and curing compounds.
B.
Shop Drawings: For details of fabricating, bending, and placing reinforcement. Include
support and anchor details, number and location of splices, and special reinforcement
required for openings through shotcrete structures.
C.
Design Mixes: For each shotcrete mix.
D.
Qualification Data: For Installer.
E.
Material Test Reports: For shotcrete materials.
F.
Material Certificates: For each material item, signed by manufacturers.
G.
Field quality-control test reports.
QUALITY ASSURANCE
A.
Installer Qualifications: A qualified installer employing nozzle operators who attain
mean core grades not exceeding 2.5, according to ACI 506.2, on preconstruction tests.
B.
Testing Agency Qualifications:
An independent agency qualified according to
ASTM C 1077 and ASTM E 329 for testing indicated, and acceptable to authorities
having jurisdiction.
C.
Comply with provisions of the following, unless more stringent requirements are
indicated:
1.
2.
D.
ACI 301, "Specifications for Structural Concrete."
ACI 506.2, "Specification for Shotcrete."
Preconstruction Testing Service: Engage a qualified independent testing agency to
perform preconstruction testing and inspections indicated below:
1.
Produce test panels before shotcrete placement according to requirements in
ACI 506.2 and ASTM C 1140 for each design mix, shooting orientation, and
nozzle operator. Produce test panels with dimensions of 24 by 24 inches (600 by
600 mm) minimum and of thickness and reinforcing layout of shotcrete work on
project. From each test panel, testing agency will obtain six test specimens: one
set of three specimens unreinforced and one set of three specimens reinforced.
Agency will perform the following:
a.
b.
NAU Proj. #09.860.131
Test each set of unreinforced specimens for compressive strength
according to ASTM C 42.
Visually inspect each set of reinforced shotcrete cores taken from test
panels and determine mean core grades according to ACI 506.2.
131102 - 2
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
E.
1.6
Center For Aquatics & Tennis
Design Development - September 13, 2013
Preinstallation Conference: Conduct conference at Project site to comply with
requirements in Division 01 Section "Project Management And Coordination."
PROJECT CONDITIONS
A.
Cold-Weather Shotcreting: Protect shotcrete work from physical damage or reduced
strength caused by frost, freezing, or low temperatures according to ACI 306.1 and as
follows:
1.
Discontinue shotcreting when ambient temperature is 40 deg F (4.4 deg C) and
falling. Uniformly heat water and aggregates before mixing to obtain a shotcrete
shooting temperature of not less than 50 deg F (10 deg C) and not more than 90
deg F (32 deg C).
Do not use frozen materials or materials containing ice or snow.
Do not place shotcrete on frozen surfaces or surfaces containing frozen materials.
Do not use calcium chloride, salt, or other materials containing antifreeze agents.
2.
3.
4.
B.
Hot-Weather Shotcreting: Mix, place, and protect shotcrete according to ACI 305R when
hot-weather conditions and high temperatures would seriously impair quality and strength
of shotcrete, and as follows:
1.
2.
Cool ingredients before mixing to maintain shotcrete temperature at time of
placement below 100 deg F (38 deg C) for dry mix or 90 deg F (32 deg C) for
wet mix.
Reduce temperature of reinforcing steel and receiving surfaces below 100 deg F
(38 deg C) before shotcreting.
PART 2 - PRODUCTS
2.1
FORM MATERIALS
A.
2.2
Forms: Form-facing panels that will provide continuous, straight, smooth, concrete
surfaces. Furnish panels in largest practicable sizes to minimize number of joints.
REINFORCING MATERIALS
A.
Reinforcing Bars: ASTM A 615/A 615M, Grade 60 (Grade 420), deformed.
B.
Supports: Bolsters, chairs, spacers, ties, and other devices for spacing, supporting, and
fastening reinforcing steel in place according to CRSI's "Manual of Standard Practice"
and as follows:
1.
C.
For uncoated reinforcement, use all-plastic or CRSI Class 1, plastic-protected bar
supports.
Reinforcing Anchors: ASTM A 36/A 36M, unheaded rods or ASTM A 307, Grade A
(ASTM F 568M, Property Class 4.6), hex-head bolts; carbon steel; and carbon-steel nuts.
1.
NAU Proj. #09.860.131
Finish: Plain, uncoated.
131102 - 3
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
2.3
SHOTCRETE MATERIALS
A.
Portland Cement: ASTM C 150, Type I/II, gray. Supplement with the following:
1.
B.
2.
Water: Potable, complying with ASTM C 94/C 94M, free from deleterious materials that
may affect color stability, setting, or strength of shotcrete.
D.
Ground Wire: High-strength steel wire, 0.8 to 1 mm in diameter.
CHEMICAL ADMIXTURES
General: ASTM C 1141, Class A or B, but limited to the following admixture materials.
Provide admixtures for shotcrete that contains not more than 0.1 percent chloride ions.
Certify compatibility of admixtures with each other and with other cementitious
materials.
1.
2.
3.
4.
5.
6.
2.6
Aggregate Gradation: ACI 506R, Gradation No. 2 with 100 percent passing 1/2inch (13-mm) sieve.
Coarse-Aggregate Class: 3S.
C.
A.
2.5
Fly Ash: ASTM C 618, Class F or C.
Normal-Weight Aggregates: ASTM C 33, from a single source, and as follows:
1.
2.4
Center For Aquatics & Tennis
Design Development - September 13, 2013
Air-Entraining Admixture: ASTM C 260.
Water-Reducing Admixture: ASTM C 494/C 494M, Type A.
Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D.
Water-Reducing and Accelerating Admixture: ASTM C 494/C 494M, Type E.
High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.
Accelerating Admixture: ASTM C 494/C 494M, Type C.
CURING MATERIALS
A.
Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf,
weighing approximately 9 oz./sq. yd. (305 g/sq. m) dry.
B.
Moisture-Retaining Cover:
polyethylene sheet.
C.
Water: Potable.
D.
Clear, Waterborne, Membrane-Forming Curing Compound:
Class B.
ASTM C 171, polyethylene film or white burlap-
ASTM C 309, Type 1,
RELATED MATERIALS
A.
Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene
butadiene.
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SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
2.7
Center For Aquatics & Tennis
Design Development - September 13, 2013
REPAIR MATERIALS
A.
Concrete Patching Mortar: Chemical treatment for waterproofing concrete.
1.
Xypex Concrete Waterproofing by Crystallization, Xypex Chemical Corporation.
a.
2.8
Xypex Concentrate.
WATERSTOPS
A.
Flexible PVC Waterstops: CE CRD-C 572, with factory-installed metal eyelets, for
embedding in concrete to prevent passage of fluids through joints. Factory fabricate
corners, intersections, and directional changes.
1.
Available Manufacturers:
a.
b.
c.
d.
e.
f.
g.
2.
3.
B.
Bometals, Inc.
Greenstreak.
Meadows, W. R., Inc.
Murphy, Paul Plastics Co.
Progress Unlimited, Inc.
Tamms Industries, Inc.
Vinylex Corp.
Profile: Ribbed without center bulb.
Dimensions: 4 inches by 3/16 inch thick (150 mm by 10 mm thick); nontapered.
Non-Expanding Plastic Adhesive Waterstops: Manufactured rectangular or trapezoidal
strip, single-component, self-sealing adhesive compount, for adhesive bonding to
concrete, 5/8 by 1-1/2 inch.
1.
Products: Subject to compliance with requirements, provide the following:
a.
Synko-Flex SF302, Henry Company.
1)
2.9
Synko-Flex SF311 Solvent Based Primer.
SHOTCRETE MIXTURES, GENERAL
A.
Prepare design mixes for each type and strength of shotcrete.
B.
Limit water-soluble chloride ions to maximum percentage by weight of cement or
cementitious materials permitted by ACI 301.
C.
Limit percentage, by weight, of cementitious materials other than portland cement in
concrete as follows:
1.
NAU Proj. #09.860.131
Fly Ash: 25 percent.
131102 - 5
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
2.10
D.
Admixtures: When included in shotcrete design mixes, use admixtures and retarding
admixtures according to manufacturer's written instructions.
E.
Design-Mix Adjustments: Subject to compliance with requirements, shotcrete designmix adjustments may be proposed when characteristics of materials, Project conditions,
weather, test results, or other circumstances warrant.
SHOTCRETE MIXTURES
A.
Proportion dry mixtures by field test data methods and wet mixtures according to
ACI 211.1 and ACI 301, using materials to be used on Project, to provide shotcrete with
the following properties:
1.
2.
3.
4.
5.
2.11
Center For Aquatics & Tennis
Design Development - September 13, 2013
Compressive Strength (28 Days): 4000 psi (27.6 MPa).
Add air-entraining admixture at manufacturer's prescribed rate to result in
normal-weight, wet-mix shotcrete having an air content before pumping of 8
percent with a tolerance of plus or minus 1-1/2 percent.
Dry-mix shotcrete shall not be air-entrained.
When fly ash is used in combination with portland cement in dry-mix shotcrete,
fly ash and portland cement shall be proportioned and blended prior use.
Dry-mix shotcrete shall not be used for outdoor applications where freeze/thaw
of concrete occurs.
SHOTCRETE EQUIPMENT
A.
Mixing Equipment: Capable of thoroughly mixing shotcrete materials in sufficient
quantities to maintain continuous placement.
B.
Dry-Mix Delivery Equipment: Capable of discharging aggregate-cement mixture into
delivery hose under close control and maintaining continuous stream of uniformly mixed
materials at required velocity to discharge nozzle. Equip discharge nozzle with manually
operated water-injection system for directing even distribution of water to aggregatecement mixture.
1.
2.
C.
Provide uniform, steady supply of clean, compressed air to maintain constant
nozzle velocity while simultaneously operating blow pipe for cleaning away
rebound.
Provide water supply with uniform pressure at discharge nozzle to ensure
uniform mixing with aggregate-cement mix. Provide water pump to system if
line water pressure is inadequate.
Wet-Mix Delivery Equipment: Capable of discharging aggregate-cement-water mixture
accurately, uniformly, and continuously.
NAU Proj. #09.860.131
131102 - 6
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
2.12
Center For Aquatics & Tennis
Design Development - September 13, 2013
BATCHING AND MIXING
A.
Dry-Mix Process:
Measure mix proportions by weight batching according to
ASTM C 94/C 94M or by volume batching complying with ASTM C 685/C 685M
requirements.
1.
2.
B.
In volume batching, adjust fine-aggregate volume for bulking. Test fineaggregate moisture content at least once daily to determine extent of bulking.
Prepackaged shotcrete materials may be used at Contractor's option. Predampen
prepackaged shotcrete materials and mix before use.
Wet-Mix Process:
Measure, batch, mix, and deliver shotcrete according to
ASTM C 94/C 94M and furnish batch ticket information.
1.
Comply with ASTM C 685/C 685M when shotcrete ingredients are delivered dry
and proportioned and mixed on-site.
PART 3 - EXECUTION
3.1
PREPARATION
A.
Concrete:
Before applying shotcrete, remove unsound or loose materials and
contaminants that may inhibit shotcrete bonding. Chip or scarify areas to be repaired to
extent necessary to provide sound substrate. Cut edges square and 1/2 inch (13 mm) deep
at perimeter of work, tapering remaining shoulder at 1:1 slope into cavity to eliminate
square shoulders. Dampen surfaces before shotcreting.
1.
3.2
Abrasive blast or hydroblast existing surfaces that do not require chipping to
remove paint, oil, grease, or other contaminants and to provide roughened surface
for proper shotcrete bonding.
B.
Earth: Compact and trim to line and grade before placing shotcrete. Do not place
shotcrete on frozen surfaces. Dampen surfaces before shotcreting.
C.
Rock: Clean rock surfaces of loose materials, mud, and other foreign matter that might
weaken shotcrete bonding.
FORMS
A.
General: Design, erect, support, brace, and maintain forms, according to ACI 301, to
support shotcrete and construction loads and to facilitate shotcreting. Construct forms so
shotcrete members and structures are secured to prevent excessive vibration or deflection
during shotcreting.
1.
2.
NAU Proj. #09.860.131
Fabricate forms to be readily removable without impact, shock, or damage to
shotcrete surfaces and adjacent materials.
Construct forms to required sizes, shapes, lines, and dimensions using ground
wires and depth gages to obtain accurate alignment, location, and grades in
finished structures. Construct forms to prevent mortar leakage but permit escape
131102 - 7
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
Center For Aquatics & Tennis
Design Development - September 13, 2013
of air and rebound during shotcreting. Provide for openings, offsets, blocking,
screeds, anchorages, inserts, and other features required in the Work.
B.
3.3
3.4
Form openings, chases, recesses, bulkheads, keyways, and screeds in formwork.
Determine sizes and locations from trades providing such items. Accurately place and
securely support items built into forms.
STEEL REINFORCEMENT
A.
General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing,
and supporting reinforcement.
B.
Clean reinforcement of loose rust and mill scale, earth, ice, and other materials that
weaken shotcrete bonding.
C.
Securely embed reinforcing anchors into existing substrates, located as required.
D.
Accurately position, support, and rigidly secure reinforcement against displacement by
formwork, construction, or shotcreting. Locate and support reinforcement by metal
chairs, runners, bolsters, spacers, and hangers, as required.
E.
Place reinforcement to obtain minimum coverage for shotcrete protection. Arrange,
space, and securely tie bars and bar supports to hold reinforcement in position during
shotcreting. Set wire ties with ends directed into shotcrete, not toward exposed shotcrete
surfaces.
JOINTS
A.
Construction Joints: Locate and install construction joints tapered to a 1:1 slope where
joint is not subject to compression loads and square where joint is perpendicular to main
reinforcement. Continue reinforcement through construction joints, unless otherwise
indicated.
1.
B.
3.5
Use bonding adhesive at locations where fresh concrete is placed against
hardened or partially hardened concrete surfaces
Contraction Joints: No contraction joints shall be placed on swimming pool walls or
slabs.
WATERSTOPS
A.
Waterstops: Install in construction joints and at other joints indicated to form a
continuous diaphragm. Install in longest lengths practicable. Support and protect
exposed waterstops during progress of the Work. Field fabricate joints in waterstops
according to manufacturer's written instructions. Prevent displacement during shotcrete
application.
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Northern Arizona University
Flagstaff, AZ
3.6
ALIGNMENT CONTROL
A.
3.7
Ground Wires: Install ground wires to establish thickness and planes of shotcrete
surfaces. Install ground wires at corners and offsets not established by forms. Pull
ground wires taut and position adjustment devices to permit additional tightening.
EMBEDDED ITEMS
A.
3.8
Center For Aquatics & Tennis
Design Development - September 13, 2013
Place and secure anchorage devices and other embedded items required for adjoining
work that is attached to or supported by shotcrete. Use setting drawings, templates,
diagrams, instructions, and directions furnished with items to be embedded.
APPLICATION
A.
Apply temporary protective coverings and protect adjacent surfaces against deposit of
rebound and overspray or impact from nozzle stream.
B.
Moisten wood forms immediately before placing shotcrete where form coatings are not
used.
C.
Apply shotcrete according to ACI 506.2.
D.
Apply dry-mix shotcrete materials within 45 minutes after predampening and wet-mix
shotcrete materials within 90 minutes after batching.
E.
Deposit shotcrete continuously in multiple passes, to required thickness, without cold
joints and laminations developing. Place shotcrete with nozzle held perpendicular to
receiving surface. Begin shotcreting in corners and recesses.
1.
2.
Remove and dispose of rebound and overspray materials during shotcreting to
maintain clean surfaces and to prevent rebound entrapment.
Rebound and overspray shall not be used for any application.
F.
Maintain reinforcement in position during shotcreting. Place shotcrete to completely
encase reinforcement and other embedded items. Maintain steel reinforcement free of
overspray and prevent buildup against front face during shotcreting.
G.
Do not place subsequent lifts until previous lift of shotcrete is capable of supporting new
shotcrete.
H.
Do not permit shotcrete to sag, slough, or dislodge.
I. Remove hardened overspray, rebound, and laitance from shotcrete surfaces to receive additional
layers of shotcrete; dampen surfaces before shotcreting.
J.Do not disturb shotcrete surfaces before beginning finishing operations.
K.
Remove ground wires or other alignment control devices after shotcrete placement.
NAU Proj. #09.860.131
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Northern Arizona University
Flagstaff, AZ
L.
Shotcrete Core Grade: Apply shotcrete to achieve mean core grades not exceeding 2.5
according to ACI 506.2, with no single core grade exceeding 3.0.
M.
Installation Tolerances: Place shotcrete without exceeding installation tolerances
permitted by ACI 117R, increased by a factor of 2.
1.
3.9
A.
General:
finishes:
B.
Dry-Mix Shotcrete, Natural Finish:
C.
Finish shotcrete according to descriptions in ACI 506R for the following
Gun Finish: Natural undisturbed finish.
Wet-Mix Shotcrete, Flash-Coat and Final Finish: After screeding and rodding surface,
apply up to 1/4-inch (6-mm) coat of shotcrete using ACI 506R, Gradation No. 1, finescreened sand modified with maximum aggregate size not exceeding No. 4 (4.75-mm)
sieve and apply wood-float finish.
CURING
A.
Protect freshly placed shotcrete from premature drying and excessive cold or hot
temperatures.
B.
Start initial curing as soon as free water has disappeared from shotcrete surface after
placing and finishing.
C.
Curing Exposed Surfaces: Cure shotcrete by one of the following methods:
1.
D.
3.11
Inside pool shell tolerances to be maintained per Division 13 Section “Swimming
Pools”.
SURFACE FINISHES
1.
3.10
Center For Aquatics & Tennis
Design Development - September 13, 2013
Moisture Curing: Keep surfaces continuously moist for at least seven days with
water, continuous water-fog spray, water-saturated absorptive covers, or
moisture-retaining covers. Lap and seal sides and ends of covers.
Curing Formed Surfaces: Cure formed shotcrete surfaces by moist curing with forms in
place for full curing period or until forms are removed. If forms are removed, continue
curing by methods specified above, as applicable.
FORM REMOVAL
A.
Forms not supporting weight of shotcrete may be removed after curing at not less than 50
deg F (10 deg C) for 24 consecutive hours after gunning, provided shotcrete is hard
enough not to be damaged by form-removal operations and provided curing and
protecting operations are maintained.
NAU Proj. #09.860.131
131102 - 10
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
1.
2.
B.
3.12
Center For Aquatics & Tennis
Design Development - September 13, 2013
Leave forms supporting weight of shotcrete in place until shotcrete has attained
design compressive strength. Determine compressive strength of in-place
shotcrete by testing representative field-cured specimens of shotcrete.
Remove forms only if shores have been arranged to permit removal of forms
without loosening or disturbing shores.
Clean and repair surfaces of forms to be reused in the Work. Split, frayed, delaminated,
or otherwise damaged form-facing materials are unacceptable for exposed surfaces.
Apply new form-coating compound as specified for new formwork.
FIELD QUALITY CONTROL
A.
Testing and Inspecting: Owner shall engage a qualified independent testing agency to
sample materials, visually grade cores, perform tests, monitor all shotcrete operations and
submit reports during shotcreting.
B.
Air Content: ASTM C 173/C 173M, volumetric method or ASTM C 231, pressure
method; 1 test for each compressive-strength test for each mix of air-entrained, wet-mix
shotcrete measured before pumping.
C.
Shotcrete Temperature: ASTM C 1064/C 1064M; 1 test hourly when air temperature is
40 deg F (4.4 deg C) and below and when 80 deg F (27 deg C) and above, and 1 test for
each set of compressive-strength specimens.
D.
Test Panels: Make a test panel, reinforced as in structure, for each shotcrete mix and for
each workday or for every 50 cu. yd. (38 cu. m) of shotcrete placed; whichever is less.
Produce test panels with dimensions of 24 by 24 inches (600 by 600 mm) minimum and
of thickness and reinforcing layout of shotcrete work on project. From each test panel,
testing agency will obtain six test specimens: one set of three specimens unreinforced
and one set of three specimens reinforced.
1.
2.
Test each set of unreinforced specimens for compressive strength according to
ASTM C 1140 and construction testing requirements in ACI 506.2.
Visually inspect each set of reinforced shotcrete cores taken from test panels and
determine mean core grades according to ACI 506.2.
E.
In-Place Shotcrete: Only if samples obtained in item D indicate unsatisfactory shotcrete,
and only if directed by Owner, Architect or Engineer, take a set of 3 unreinforced cores
for each mix and for each workday or for every 50 cu. yd. (38 cu. m) of shotcrete placed;
whichever is less. Test cores for compressive strength according to ACI 506.2 and
ASTM C 42. Do not cut steel reinforcement.
F.
Strength of shotcrete will be considered satisfactory when mean compressive strength of
each set of 3 unreinforced cores equals or exceeds 85 percent of specified compressive
strength, with no individual core less than 75 percent of specified compressive strength.
1.
NAU Proj. #09.860.131
Mean compressive strength of each set of 3 unreinforced cubes shall equal or
exceed design compressive strength with no individual cube less than 88 percent
of specified compressive strength.
131102 - 11
SWIMMING POOLSHOTCRETE
Northern Arizona University
Flagstaff, AZ
3.13
Center For Aquatics & Tennis
Design Development - September 13, 2013
REPAIRS
A.
Remove and replace shotcrete that is delaminated or exhibits laminations, voids, or
sand/rock pockets exceeding limits for specified core grade of shotcrete.
1.
Remove unsound or loose materials and contaminants that may inhibit bond of
shotcrete repairs. Chip or scarify areas to be repaired to extent necessary to
provide sound substrate. Cut edges square and 1/2 inch (13 mm) deep at
perimeter of work, tapering remaining shoulder at 1:1 slope into cavity to
eliminate square shoulders. Apply concrete patch by one of the following
methods:
a.
b.
B.
3.14
Repair core holes from in-place testing according to repair provisions in ACI 301 and
match adjacent finish, texture, and color. Apply bonding agent per manufacturer’s
recommendations. Use concrete patching mortar to repair defect.
CLEANING
A.
3.15
Dampen surfaces and apply new shotcrete.
Apply bonding agent per manufacturer’s recommendations. Use concrete
patching mortar to repair defect.
Remove and dispose of rebound and overspray materials from final shotcrete surfaces
and areas not intended for shotcrete placement.
WATERTIGHTNESS TESTING
A.
Pool shall be tested for watertightness according to procedures stated in ACI350.1 /
AWWA 400.
1.
2.
Preliminary Test Criteria: HST-VIO.
Quantitative Test Criteria: HST-100.
END OF SECTION 131102
NAU Proj. #09.860.131
131102 - 12
SWIMMING POOLSHOTCRETE